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22557051 = 3211227849
BaseRepresentation
bin101011000001…
…1000101111011
31120110000110100
41112003011323
521233311201
62123250443
7362505666
oct126030573
946400410
1022557051
11118074a0
127679a23
13489a28a
142dd26dd
151ea8886
hex158317b

22557051 has 12 divisors (see below), whose sum is σ = 35544600. Its totient is φ = 13670880.

The previous prime is 22557023. The next prime is 22557061. The reversal of 22557051 is 15075522.

It is a happy number.

It is not a de Polignac number, because 22557051 - 25 = 22557019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22557001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113826 + ... + 114023.

It is an arithmetic number, because the mean of its divisors is an integer number (2962050).

Almost surely, 222557051 is an apocalyptic number.

22557051 is a deficient number, since it is larger than the sum of its proper divisors (12987549).

22557051 is a wasteful number, since it uses less digits than its factorization.

22557051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227866 (or 227863 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 22557051 is about 4749.4263864176. The cubic root of 22557051 is about 282.5492163710.

The spelling of 22557051 in words is "twenty-two million, five hundred fifty-seven thousand, fifty-one".

Divisors: 1 3 9 11 33 99 227849 683547 2050641 2506339 7519017 22557051