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10813431 = 347531447
BaseRepresentation
bin101001001111…
…111111110111
3202100101020110
4221033333313
510232012211
61023434103
7160625016
oct51177767
922311213
1010813431
116116322
123755933
132317ba5
141616a7d
15e38ea6
hexa4fff7

10813431 has 16 divisors (see below), whose sum is σ = 15012864. Its totient is φ = 6917664.

The previous prime is 10813423. The next prime is 10813457. The reversal of 10813431 is 13431801.

It is not a de Polignac number, because 10813431 - 23 = 10813423 is a prime.

It is a super-2 number, since 2×108134312 = 233860579983522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10813398 and 10813407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10813471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6750 + ... + 8196.

It is an arithmetic number, because the mean of its divisors is an integer number (938304).

Almost surely, 210813431 is an apocalyptic number.

10813431 is a deficient number, since it is larger than the sum of its proper divisors (4199433).

10813431 is a wasteful number, since it uses less digits than its factorization.

10813431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 10813431 is about 3288.3781716828. The cubic root of 10813431 is about 221.1334820107.

The spelling of 10813431 in words is "ten million, eight hundred thirteen thousand, four hundred thirty-one".

Divisors: 1 3 47 53 141 159 1447 2491 4341 7473 68009 76691 204027 230073 3604477 10813431