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22925213 = 31739523
BaseRepresentation
bin101011101110…
…0111110011101
31121010201110222
41113130332131
521332101323
62135211125
7365601233
oct127347635
947121428
1022925213
1111a39063
127816aa5
134998a1c
14308a953
15202c9c8
hex15dcf9d

22925213 has 4 divisors (see below), whose sum is σ = 23664768. Its totient is φ = 22185660.

The previous prime is 22925209. The next prime is 22925219. The reversal of 22925213 is 31252922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22925213 - 22 = 22925209 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 (22925219) 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 3 ways as a sum of consecutive naturals, for example, 369731 + ... + 369792.

It is an arithmetic number, because the mean of its divisors is an integer number (5916192).

Almost surely, 222925213 is an apocalyptic number.

It is an amenable number.

22925213 is a deficient number, since it is larger than the sum of its proper divisors (739555).

22925213 is an equidigital number, since it uses as much as digits as its factorization.

22925213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739554.

The product of its digits is 2160, while the sum is 26.

The square root of 22925213 is about 4788.0280909786. The cubic root of 22925213 is about 284.0781252037.

The spelling of 22925213 in words is "twenty-two million, nine hundred twenty-five thousand, two hundred thirteen".

Divisors: 1 31 739523 22925213