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102685137 = 3331103409
BaseRepresentation
bin1100001111011…
…01100111010001
321011012221112020
412013231213101
5202241411022
614104522053
72354544402
oct607554721
9234187466
10102685137
1152a65955
122a480329
1318373a49
14d8cd9a9
15903535c
hex61ed9d1

102685137 has 8 divisors (see below), whose sum is σ = 137328480. Its totient is φ = 68249280.

The previous prime is 102685111. The next prime is 102685147. The reversal of 102685137 is 731586201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-102685137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102685098 and 102685107.

It is not an unprimeable number, because it can be changed into a prime (102685147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50712 + ... + 52697.

It is an arithmetic number, because the mean of its divisors is an integer number (17166060).

Almost surely, 2102685137 is an apocalyptic number.

It is an amenable number.

102685137 is a deficient number, since it is larger than the sum of its proper divisors (34643343).

102685137 is a wasteful number, since it uses less digits than its factorization.

102685137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103743.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 102685137 is about 10133.3675054248. The cubic root of 102685137 is about 468.2766782049.

The spelling of 102685137 in words is "one hundred two million, six hundred eighty-five thousand, one hundred thirty-seven".

Divisors: 1 3 331 993 103409 310227 34228379 102685137