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214680906 = 232111084247
BaseRepresentation
bin11001100101111…
…00010101001010
3112221221220211200
430302330111022
5414424242111
633145205030
75214520566
oct1462742512
9487856750
10214680906
111001aaa40
125ba90776
133562762b
14207246a6
1513ca9256
hexccbc54a

214680906 has 24 divisors (see below), whose sum is σ = 507428064. Its totient is φ = 65054760.

The previous prime is 214680889. The next prime is 214680971. The reversal of 214680906 is 609086412.

214680906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 541926 + ... + 542321.

It is an arithmetic number, because the mean of its divisors is an integer number (21142836).

Almost surely, 2214680906 is an apocalyptic number.

214680906 is an abundant number, since it is smaller than the sum of its proper divisors (292747158).

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

214680906 is a wasteful number, since it uses less digits than its factorization.

214680906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084266 (or 1084263 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 214680906 is about 14651.9932432417. The cubic root of 214680906 is about 598.7761219014.

The spelling of 214680906 in words is "two hundred fourteen million, six hundred eighty thousand, nine hundred six".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 1084247 2168494 3252741 6505482 9758223 11926717 19516446 23853434 35780151 71560302 107340453 214680906