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102 (number)

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Title: 102 (number)  
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Subject: 101 (number), 103 (number), 108 (number), 6 (number), 104 (number)
Collection: Integers
Publisher: World Heritage Encyclopedia

102 (number)

101 102 103
Cardinal one hundred two
Ordinal 102nd
(one hundred and second)
Factorization 2 × 3 × 17
Divisors 1, 2, 3, 6, 17, 34, 51, 102
Roman numeral CII
Binary 11001102
Ternary 102103
Quaternary 12124
Quinary 4025
Senary 2506
Octal 1468
Duodecimal 8612
Hexadecimal 6616
Vigesimal 5220
Base 36 2U36

102 (one hundred [and] two) is the natural number following 101 and preceding 103.


  • In mathematics 1
  • In science 2
  • In other fields 3
  • See also 4
  • References 5

In mathematics

102 is an abundant number and semiperfect number. It is a sphenic number. It is the sum of four consecutive prime numbers (19 + 23 + 29 + 31).

The sum of Euler's totient function φ(x) over the first eighteen integers is 102.

102 is the third base 10 polydivisible number, since 1 is divisible by 1, 10 is divisible by 2 and 102 is divisible by 3. This also shows that 102 is a Harshad number. 102 is the first 3-digit number divisible by the numbers 3, 6, 17, 34 and 51.

In science

In other fields

102 is also:

See also


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