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22957465 = 54591493
BaseRepresentation
bin101011110010…
…0110110011001
31121012100201111
41113210312121
521334114330
62140020321
7366064246
oct127446631
947170644
1022957465
1111a60313
1278316a1
1349aa5cb
1430985cd
15203732a
hex15e4d99

22957465 has 4 divisors (see below), whose sum is σ = 27548964. Its totient is φ = 18365968.

The previous prime is 22957447. The next prime is 22957469. The reversal of 22957465 is 56475922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17081689 + 5875776 = 4133^2 + 2424^2 .

It is a cyclic number.

It is not a de Polignac number, because 22957465 - 211 = 22955417 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22957469) 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, 2295742 + ... + 2295751.

It is an arithmetic number, because the mean of its divisors is an integer number (6887241).

Almost surely, 222957465 is an apocalyptic number.

It is an amenable number.

22957465 is a deficient number, since it is larger than the sum of its proper divisors (4591499).

22957465 is an equidigital number, since it uses as much as digits as its factorization.

22957465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591498.

The product of its digits is 151200, while the sum is 40.

The square root of 22957465 is about 4791.3948908434. The cubic root of 22957465 is about 284.2112798304.

The spelling of 22957465 in words is "twenty-two million, nine hundred fifty-seven thousand, four hundred sixty-five".

Divisors: 1 5 4591493 22957465