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256211094 = 23311377479
BaseRepresentation
bin11110100010101…
…11100010010110
3122212002212112210
433101113202112
51011042223334
641231254250
76230521056
oct1721274226
9585085483
10256211094
11121696207
127197a386
13411087c9
1426055566
151775e5e9
hexf457896

256211094 has 16 divisors (see below), whose sum is σ = 528952320. Its totient is φ = 82648680.

The previous prime is 256211057. The next prime is 256211159. The reversal of 256211094 is 490112652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688554 + ... + 688925.

It is an arithmetic number, because the mean of its divisors is an integer number (33059520).

Almost surely, 2256211094 is an apocalyptic number.

256211094 is an abundant number, since it is smaller than the sum of its proper divisors (272741226).

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

256211094 is a wasteful number, since it uses less digits than its factorization.

256211094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377515.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 256211094 is about 16006.5953281764. The cubic root of 256211094 is about 635.1348993165.

The spelling of 256211094 in words is "two hundred fifty-six million, two hundred eleven thousand, ninety-four".

Divisors: 1 2 3 6 31 62 93 186 1377479 2754958 4132437 8264874 42701849 85403698 128105547 256211094