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214664976 = 24321490729
BaseRepresentation
bin11001100101110…
…00011100010000
3112221221002222200
430302320130100
5414423234401
633145003200
75214423261
oct1462703420
9487832880
10214664976
11100199a79
125ba83500
13356202c6
142071c968
1513ca4686
hexccb8710

214664976 has 30 divisors (see below), whose sum is σ = 600764190. Its totient is φ = 71554944.

The previous prime is 214664963. The next prime is 214664981. The reversal of 214664976 is 679466412.

It can be written as a sum of positive squares in only one way, i.e., 134096400 + 80568576 = 11580^2 + 8976^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 745221 + ... + 745508.

It is an arithmetic number, because the mean of its divisors is an integer number (20025473).

Almost surely, 2214664976 is an apocalyptic number.

It is an amenable number.

214664976 is an abundant number, since it is smaller than the sum of its proper divisors (386099214).

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

214664976 is a wasteful number, since it uses less digits than its factorization.

214664976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490743 (or 1490734 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 214664976 is about 14651.4496211126. The cubic root of 214664976 is about 598.7613111765.

The spelling of 214664976 in words is "two hundred fourteen million, six hundred sixty-four thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 1490729 2981458 4472187 5962916 8944374 11925832 13416561 17888748 23851664 26833122 35777496 53666244 71554992 107332488 214664976