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135664854 = 23136128513
BaseRepresentation
bin10000001011000…
…01010011010110
3100110021111012020
420011201103112
5234212233404
621243434010
73235063233
oct1005412326
9313244166
10135664854
116a641016
1239525906
1322150080
141403678a
15bd9bed9
hex81614d6

135664854 has 32 divisors (see below), whose sum is σ = 297001824. Its totient is φ = 41057280.

The previous prime is 135664849. The next prime is 135664873. The reversal of 135664854 is 458466531.

It is a super-2 number, since 2×1356648542 = 36809905221682632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9499 + ... + 19014.

It is an arithmetic number, because the mean of its divisors is an integer number (9281307).

Almost surely, 2135664854 is an apocalyptic number.

135664854 is an abundant number, since it is smaller than the sum of its proper divisors (161336970).

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

135664854 is a wasteful number, since it uses less digits than its factorization.

135664854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28592.

The product of its digits is 345600, while the sum is 42.

The square root of 135664854 is about 11647.5256599846. The cubic root of 135664854 is about 513.8335418634.

The spelling of 135664854 in words is "one hundred thirty-five million, six hundred sixty-four thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 13 26 39 61 78 122 183 366 793 1586 2379 4758 28513 57026 85539 171078 370669 741338 1112007 1739293 2224014 3478586 5217879 10435758 22610809 45221618 67832427 135664854