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102939007 = 238353923
BaseRepresentation
bin1100010001010…
…11100101111111
321011200211202211
412020223211333
5202323022012
614114201251
72356652503
oct610534577
9234624684
10102939007
1153119666
122a583227
1318432472
14d958303
1590856a7
hex622b97f

102939007 has 8 divisors (see below), whose sum is σ = 108710784. Its totient is φ = 97275288.

The previous prime is 102938981. The next prime is 102939013. The reversal of 102939007 is 700939201.

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

It is a cyclic number.

It is not a de Polignac number, because 102939007 - 211 = 102936959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102939007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102939047) 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, 25053 + ... + 28870.

It is an arithmetic number, because the mean of its divisors is an integer number (13588848).

Almost surely, 2102939007 is an apocalyptic number.

102939007 is a deficient number, since it is larger than the sum of its proper divisors (5771777).

102939007 is an equidigital number, since it uses as much as digits as its factorization.

102939007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54029.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 102939007 is about 10145.8862106767. The cubic root of 102939007 is about 468.6622697564.

The spelling of 102939007 in words is "one hundred two million, nine hundred thirty-nine thousand, seven".

Divisors: 1 23 83 1909 53923 1240229 4475609 102939007