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10401031431 = 327165095737
BaseRepresentation
bin10011010111111001…
…10010010100000111
3222211212101010211100
421223330302110013
5132300131001211
64440030111143
7515514210540
oct115374622407
928755333740
1010401031431
11445812494a
12202334b4b3
13c99b0038b
147095154c7
1540d1c7156
hex26bf32507

10401031431 has 12 divisors (see below), whose sum is σ = 17169956752. Its totient is φ = 5943446496.

The previous prime is 10401031429. The next prime is 10401031469. The reversal of 10401031431 is 13413010401.

It is not a de Polignac number, because 10401031431 - 21 = 10401031429 is a prime.

It is a super-2 number, since 2×104010314312 (a number of 21 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 (10401031031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82547806 + ... + 82547931.

Almost surely, 210401031431 is an apocalyptic number.

10401031431 is a deficient number, since it is larger than the sum of its proper divisors (6768925321).

10401031431 is a wasteful number, since it uses less digits than its factorization.

10401031431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165095750 (or 165095747 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10401031431 its reverse (13413010401), we get a palindrome (23814041832).

The spelling of 10401031431 in words is "ten billion, four hundred one million, thirty-one thousand, four hundred thirty-one".

Divisors: 1 3 7 9 21 63 165095737 495287211 1155670159 1485861633 3467010477 10401031431