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7272808972 = 22111312714701
BaseRepresentation
bin1101100010111111…
…00100001000001100
3200202212001222100021
412301133210020030
5104343314341342
63201401311524
7345140566462
oct66137441014
920685058307
107272808972
1130a2347030
1214ab7955a4
138bb9a3480
144cdc92832
152c8756567
hex1b17e420c

7272808972 has 24 divisors (see below), whose sum is σ = 14952489552. Its totient is φ = 3051528000.

The previous prime is 7272808969. The next prime is 7272808973. The reversal of 7272808972 is 2798082727.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (7272808973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6356779 + ... + 6357922.

It is an arithmetic number, because the mean of its divisors is an integer number (623020398).

Almost surely, 27272808972 is an apocalyptic number.

It is an amenable number.

7272808972 is an abundant number, since it is smaller than the sum of its proper divisors (7679680580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7272808972 is a wasteful number, since it uses less digits than its factorization.

7272808972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12714729 (or 12714727 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 52.

The square root of 7272808972 is about 85280.7655453444. The cubic root of 7272808972 is about 1937.4658671864.

The spelling of 7272808972 in words is "seven billion, two hundred seventy-two million, eight hundred eight thousand, nine hundred seventy-two".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 12714701 25429402 50858804 139861711 165291113 279723422 330582226 559446844 661164452 1818202243 3636404486 7272808972