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10972731 = 371147501
BaseRepresentation
bin101001110110…
…111000111011
3202122110202110
4221312320323
510302111411
61031103403
7162160320
oct51667073
922573673
1010972731
116214a80
123811b63
132372553
141658b47
15e6b2a6
hexa76e3b

10972731 has 16 divisors (see below), whose sum is σ = 18240768. Its totient is φ = 5700000.

The previous prime is 10972727. The next prime is 10972733. The reversal of 10972731 is 13727901.

It is not a de Polignac number, because 10972731 - 22 = 10972727 is a prime.

It is a super-2 number, since 2×109727312 = 240801651196722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10972733) 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, 23520 + ... + 23981.

It is an arithmetic number, because the mean of its divisors is an integer number (1140048).

Almost surely, 210972731 is an apocalyptic number.

10972731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10972731 is a deficient number, since it is larger than the sum of its proper divisors (7268037).

10972731 is a wasteful number, since it uses less digits than its factorization.

10972731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47522.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 10972731 is about 3312.5112829997. The cubic root of 10972731 is about 222.2140821000.

It can be divided in two parts, 1097 and 2731, that added together give a triangular number (3828 = T87).

The spelling of 10972731 in words is "ten million, nine hundred seventy-two thousand, seven hundred thirty-one".

Divisors: 1 3 7 11 21 33 77 231 47501 142503 332507 522511 997521 1567533 3657577 10972731