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10663131 = 317419499
BaseRepresentation
bin101000101011…
…010011011011
3202001202001210
4220223103123
510212210011
61020314203
7156430563
oct50532333
922052053
1010663131
116023406
1236a2963
13229465b
1415b7da3
15e096a6
hexa2b4db

10663131 has 16 divisors (see below), whose sum is σ = 15120000. Its totient is φ = 6661248.

The previous prime is 10663111. The next prime is 10663139. The reversal of 10663131 is 13136601.

It is not a de Polignac number, because 10663131 - 218 = 10400987 is a prime.

It is a super-2 number, since 2×106631312 = 227404725446322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10663098 and 10663107.

It is not an unprimeable number, because it can be changed into a prime (10663139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21120 + ... + 21618.

It is an arithmetic number, because the mean of its divisors is an integer number (945000).

Almost surely, 210663131 is an apocalyptic number.

10663131 is a deficient number, since it is larger than the sum of its proper divisors (4456869).

10663131 is a wasteful number, since it uses less digits than its factorization.

10663131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 10663131 is about 3265.4449926465. Note that the first 3 decimals coincide. The cubic root of 10663131 is about 220.1041586674.

Adding to 10663131 its reverse (13136601), we get a palindrome (23799732).

The spelling of 10663131 in words is "ten million, six hundred sixty-three thousand, one hundred thirty-one".

Divisors: 1 3 17 51 419 499 1257 1497 7123 8483 21369 25449 209081 627243 3554377 10663131