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22974957 = 322552773
BaseRepresentation
bin101011110100…
…1000111101101
31121020020201100
41113221013231
521340144312
62140233313
7366166245
oct127510755
947206640
1022974957
1111a72475
12783b839
1349b5565
1430a0b25
15203c5dc
hex15e91ed

22974957 has 6 divisors (see below), whose sum is σ = 33186062. Its totient is φ = 15316632.

The previous prime is 22974949. The next prime is 22974967. The reversal of 22974957 is 75947922.

It can be written as a sum of positive squares in only one way, i.e., 20331081 + 2643876 = 4509^2 + 1626^2 .

It is not a de Polignac number, because 22974957 - 23 = 22974949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22974947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1276378 + ... + 1276395.

Almost surely, 222974957 is an apocalyptic number.

It is an amenable number.

22974957 is a deficient number, since it is larger than the sum of its proper divisors (10211105).

22974957 is a wasteful number, since it uses less digits than its factorization.

22974957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552779 (or 2552776 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 22974957 is about 4793.2198989823. The cubic root of 22974957 is about 284.2834446159.

The spelling of 22974957 in words is "twenty-two million, nine hundred seventy-four thousand, nine hundred fifty-seven".

Divisors: 1 3 9 2552773 7658319 22974957