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23275072 = 26379829
BaseRepresentation
bin101100011001…
…0011001000000
31121210111101201
41120302121000
521424300242
62150510544
7401556232
oct130623100
947714351
1023275072
11121579a7
127965454
134a8c042
14313c252
15209b4b7
hex1632640

23275072 has 28 divisors (see below), whose sum is σ = 47439580. Its totient is φ = 11321856.

The previous prime is 23275061. The next prime is 23275073. The reversal of 23275072 is 27057232.

It can be written as a sum of positive squares in 2 ways, for example, as 21013056 + 2262016 = 4584^2 + 1504^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23275072.

It is not an unprimeable number, because it can be changed into a prime (23275073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2547 + ... + 7282.

Almost surely, 223275072 is an apocalyptic number.

It is an amenable number.

23275072 is an abundant number, since it is smaller than the sum of its proper divisors (24164508).

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

23275072 is an equidigital number, since it uses as much as digits as its factorization.

23275072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878 (or 9868 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 23275072 is about 4824.4245252672. The cubic root of 23275072 is about 285.5159301341.

The spelling of 23275072 in words is "twenty-three million, two hundred seventy-five thousand, seventy-two".

Divisors: 1 2 4 8 16 32 37 64 74 148 296 592 1184 2368 9829 19658 39316 78632 157264 314528 363673 629056 727346 1454692 2909384 5818768 11637536 23275072