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256094380 = 22512804719
BaseRepresentation
bin11110100001110…
…11000010101100
3122211212221110001
433100323002230
51011030010010
641224554044
76226523563
oct1720730254
9584787401
10256094380
11121616553
1271922924
1341097649
1426024bda
1517739c3a
hexf43b0ac

256094380 has 12 divisors (see below), whose sum is σ = 537798240. Its totient is φ = 102437744.

The previous prime is 256094309. The next prime is 256094381. The reversal of 256094380 is 83490652.

256094380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (256094381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6402340 + ... + 6402379.

It is an arithmetic number, because the mean of its divisors is an integer number (44816520).

Almost surely, 2256094380 is an apocalyptic number.

256094380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256094380 is an abundant number, since it is smaller than the sum of its proper divisors (281703860).

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

256094380 is a wasteful number, since it uses less digits than its factorization.

256094380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12804728 (or 12804726 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 256094380 is about 16002.9491032122. The cubic root of 256094380 is about 635.0384418830.

The spelling of 256094380 in words is "two hundred fifty-six million, ninety-four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 12804719 25609438 51218876 64023595 128047190 256094380