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214557808 = 2427534871
BaseRepresentation
bin11001100100111…
…10010001110000
3112221201122222111
430302132101300
5414411322213
633142415104
75213465653
oct1462362160
9487648874
10214557808
11100126503
125ba31494
13355b35aa
14206d189a
1513c82a3d
hexcc9e470

214557808 has 20 divisors (see below), whose sum is σ = 415942128. Its totient is φ = 107217920.

The previous prime is 214557803. The next prime is 214557839. The reversal of 214557808 is 808755412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214557803) 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 3 ways as a sum of consecutive naturals, for example, 41613 + ... + 46483.

Almost surely, 2214557808 is an apocalyptic number.

It is an amenable number.

214557808 is a deficient number, since it is larger than the sum of its proper divisors (201384320).

214557808 is a wasteful number, since it uses less digits than its factorization.

214557808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7632 (or 7626 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 214557808 is about 14647.7919155073. The cubic root of 214557808 is about 598.6616539732.

The spelling of 214557808 in words is "two hundred fourteen million, five hundred fifty-seven thousand, eight hundred eight".

Divisors: 1 2 4 8 16 2753 4871 5506 9742 11012 19484 22024 38968 44048 77936 13409863 26819726 53639452 107278904 214557808