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252086706 = 232131106907
BaseRepresentation
bin11110000011010…
…00100110110010
3122120100022221200
433001220212302
51004013233311
641003032030
76150462444
oct1701504662
9576308850
10252086706
1111a329523
127050b616
13402c3441
14256a0494
15171e7556
hexf0689b2

252086706 has 24 divisors (see below), whose sum is σ = 550362384. Its totient is φ = 83386680.

The previous prime is 252086701. The next prime is 252086719. The reversal of 252086706 is 607680252.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252086701) 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 11 ways as a sum of consecutive naturals, for example, 51096 + ... + 55811.

It is an arithmetic number, because the mean of its divisors is an integer number (22931766).

Almost surely, 2252086706 is an apocalyptic number.

252086706 is an abundant number, since it is smaller than the sum of its proper divisors (298275678).

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

252086706 is a wasteful number, since it uses less digits than its factorization.

252086706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107046 (or 107043 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 252086706 is about 15877.2386138144. The cubic root of 252086706 is about 631.7083940878.

The spelling of 252086706 in words is "two hundred fifty-two million, eighty-six thousand, seven hundred six".

Divisors: 1 2 3 6 9 18 131 262 393 786 1179 2358 106907 213814 320721 641442 962163 1924326 14004817 28009634 42014451 84028902 126043353 252086706