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10102400031 = 317918812663
BaseRepresentation
bin10010110100010011…
…00110010000011111
3222002001110002120010
421122021212100133
5131142203300111
64350241254303
7505226661213
oct113211462037
928061402503
1010102400031
1143145a5739
121b5b334393
13c4cc914c9
146bb9ba943
153e1d88aa6
hex25a26641f

10102400031 has 8 divisors (see below), whose sum is σ = 13545118080. Its totient is φ = 6697307672.

The previous prime is 10102399981. The next prime is 10102400047. The reversal of 10102400031 is 13000420101.

It is a happy number.

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 10102400031 - 214 = 10102383647 is a prime.

It is a super-2 number, since 2×101024000312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102400051) 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, 9405795 + ... + 9406868.

It is an arithmetic number, because the mean of its divisors is an integer number (1693139760).

Almost surely, 210102400031 is an apocalyptic number.

10102400031 is a deficient number, since it is larger than the sum of its proper divisors (3442718049).

10102400031 is a wasteful number, since it uses less digits than its factorization.

10102400031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18812845.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10102400031 its reverse (13000420101), we get a palindrome (23102820132).

The spelling of 10102400031 in words is "ten billion, one hundred two million, four hundred thousand, thirty-one".

Divisors: 1 3 179 537 18812663 56437989 3367466677 10102400031