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254428834 = 21117680291
BaseRepresentation
bin11110010101001…
…00011010100010
3122201202022202011
433022210122202
51010113210314
641125143134
76206416012
oct1712443242
9581668664
10254428834
11120689170
127125aaaa
134093350a
1425b0dc42
151750b4c4
hexf2a46a2

254428834 has 16 divisors (see below), whose sum is σ = 440829216. Its totient is φ = 108846400.

The previous prime is 254428799. The next prime is 254428841. The reversal of 254428834 is 438824452.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 339772 + ... + 340519.

It is an arithmetic number, because the mean of its divisors is an integer number (27551826).

Almost surely, 2254428834 is an apocalyptic number.

254428834 is a deficient number, since it is larger than the sum of its proper divisors (186400382).

254428834 is a wasteful number, since it uses less digits than its factorization.

254428834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680321.

The product of its digits is 245760, while the sum is 40.

The square root of 254428834 is about 15950.8254958795. The cubic root of 254428834 is about 633.6587591351.

The spelling of 254428834 in words is "two hundred fifty-four million, four hundred twenty-eight thousand, eight hundred thirty-four".

Divisors: 1 2 11 17 22 34 187 374 680291 1360582 7483201 11564947 14966402 23129894 127214417 254428834