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253089858 = 23721128559
BaseRepresentation
bin11110001010111…
…01100001000010
3122122020022000110
433011131201002
51004242333413
641040332150
76162141210
oct1705354102
9578208013
10253089858
1111a95417a
1270914056
1340584c18
1425881cb0
15173448c3
hexf15d842

253089858 has 32 divisors (see below), whose sum is σ = 581253120. Its totient is φ = 71966160.

The previous prime is 253089857. The next prime is 253089869. The reversal of 253089858 is 858980352.

It is not an unprimeable number, because it can be changed into a prime (253089853) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5418 + ... + 23141.

It is an arithmetic number, because the mean of its divisors is an integer number (18164160).

Almost surely, 2253089858 is an apocalyptic number.

253089858 is an abundant number, since it is smaller than the sum of its proper divisors (328163262).

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

253089858 is a wasteful number, since it uses less digits than its factorization.

253089858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28782.

The product of its (nonzero) digits is 691200, while the sum is 48.

The square root of 253089858 is about 15908.7981318514. The cubic root of 253089858 is about 632.5452236356.

The spelling of 253089858 in words is "two hundred fifty-three million, eighty-nine thousand, eight hundred fifty-eight".

Divisors: 1 2 3 6 7 14 21 42 211 422 633 1266 1477 2954 4431 8862 28559 57118 85677 171354 199913 399826 599739 1199478 6025949 12051898 18077847 36155694 42181643 84363286 126544929 253089858