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22925238 = 237277977
BaseRepresentation
bin101011101110…
…0111110110110
31121010201111220
41113130332312
521332101423
62135211210
7365601300
oct127347666
947121456
1022925238
1111a39086
127816b06
134998a3b
14308a970
15202c9e3
hex15dcfb6

22925238 has 24 divisors (see below), whose sum is σ = 53336952. Its totient is φ = 6549984.

The previous prime is 22925233. The next prime is 22925263. The reversal of 22925238 is 83252922.

It is a junction number, because it is equal to n+sod(n) for n = 22925199 and 22925208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22925233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38695 + ... + 39282.

It is an arithmetic number, because the mean of its divisors is an integer number (2222373).

Almost surely, 222925238 is an apocalyptic number.

22925238 is an abundant number, since it is smaller than the sum of its proper divisors (30411714).

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

22925238 is a wasteful number, since it uses less digits than its factorization.

22925238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77996 (or 77989 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 22925238 is about 4788.0307016560. The cubic root of 22925238 is about 284.0782284663.

The spelling of 22925238 in words is "twenty-two million, nine hundred twenty-five thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 77977 155954 233931 467862 545839 1091678 1637517 3275034 3820873 7641746 11462619 22925238