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23019467472 = 2432769207877
BaseRepresentation
bin10101011100000100…
…010011001011010000
32012102021012002221100
4111130010103023100
5334120440424342
614324111024400
71443305150031
oct253404231320
965367162840
1023019467472
119842986691
12456520b100
13222b117091
141185318a88
158eada7e4c
hex55c1132d0

23019467472 has 60 divisors (see below), whose sum is σ = 64506622180. Its totient is φ = 7663140864.

The previous prime is 23019467437. The next prime is 23019467473. The reversal of 23019467472 is 27476491032.

23019467472 is a `hidden beast` number, since 2 + 30 + 1 + 94 + 67 + 472 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9350116416 + 13669351056 = 96696^2 + 116916^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23019467473) 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, 6798 + ... + 214674.

Almost surely, 223019467472 is an apocalyptic number.

It is an amenable number.

23019467472 is an abundant number, since it is smaller than the sum of its proper divisors (41487154708).

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

23019467472 is a wasteful number, since it uses less digits than its factorization.

23019467472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208660 (or 208651 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 23019467472 in words is "twenty-three billion, nineteen million, four hundred sixty-seven thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 769 1538 2307 3076 4614 6152 6921 9228 12304 13842 18456 27684 36912 55368 110736 207877 415754 623631 831508 1247262 1663016 1870893 2494524 3326032 3741786 4989048 7483572 9978096 14967144 29934288 159857413 319714826 479572239 639429652 959144478 1278859304 1438716717 1918288956 2557718608 2877433434 3836577912 5754866868 7673155824 11509733736 23019467472