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10255431641 = 713891266259
BaseRepresentation
bin10011000110100010…
…10111011111011001
3222110201101220110112
421203101113133121
5132000342303031
64413345254105
7512065505420
oct114321273731
928421356415
1010255431641
114392a18644
121ba2634335
13c758b2260
146d40542b7
1540051662b
hex2634577d9

10255431641 has 16 divisors (see below), whose sum is σ = 12763900800. Its totient is φ = 8023010688.

The previous prime is 10255431623. The next prime is 10255431643. The reversal of 10255431641 is 14613455201.

It is a de Polignac number, because none of the positive numbers 2k-10255431641 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10255431598 and 10255431607.

It is not an unprimeable number, because it can be changed into a prime (10255431643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625031 + ... + 641228.

It is an arithmetic number, because the mean of its divisors is an integer number (797743800).

Almost surely, 210255431641 is an apocalyptic number.

It is an amenable number.

10255431641 is a deficient number, since it is larger than the sum of its proper divisors (2508469159).

10255431641 is a wasteful number, since it uses less digits than its factorization.

10255431641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266368.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 10255431641 its reverse (14613455201), we get a palindrome (24868886842).

The spelling of 10255431641 in words is "ten billion, two hundred fifty-five million, four hundred thirty-one thousand, six hundred forty-one".

Divisors: 1 7 13 89 91 623 1157 8099 1266259 8863813 16461367 112697051 115229569 788879357 1465061663 10255431641