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102002013031 = 3722971200179
BaseRepresentation
bin101111011111111001…
…0110011001101100111
3100202021200210010211111
41132333302303031213
53132400003404111
6114505321045451
710240463543122
oct1367762631547
9322250703744
10102002013031
113a293528126
1217928326887
139807510139
144d18cc13b9
1529bed98a21
hex17bfcb3367

102002013031 has 8 divisors (see below), whose sum is σ = 104804518320. Its totient is φ = 99201912768.

The previous prime is 102002012989. The next prime is 102002013049. The reversal of 102002013031 is 130310200201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102002013031 is a prime.

It is a super-2 number, since 2×1020020130312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002011031) 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, 515101 + ... + 685078.

It is an arithmetic number, because the mean of its divisors is an integer number (13100564790).

Almost surely, 2102002013031 is an apocalyptic number.

102002013031 is a deficient number, since it is larger than the sum of its proper divisors (2802505289).

102002013031 is a wasteful number, since it uses less digits than its factorization.

102002013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202513.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 102002013031 its reverse (130310200201), we get a palindrome (232312213232).

The spelling of 102002013031 in words is "one hundred two billion, two million, thirteen thousand, thirty-one".

Divisors: 1 37 2297 84989 1200179 44406623 2756811163 102002013031