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138250564 = 2258792
BaseRepresentation
bin10000011110110…
…00100101000100
3100122010212010021
420033120211010
5240343004224
621415104524
73266052604
oct1017304504
9318125107
10138250564
1171047771
123a372144
1322846c8a
141450ac04
15c20d1e4
hex83d8944

138250564 has 9 divisors (see below), whose sum is σ = 241979647. Its totient is φ = 69113524.

The previous prime is 138250559. The next prime is 138250571. The reversal of 138250564 is 465052831.

The square root of 138250564 is 11758.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×1382505642 = 38226436892636192, which contains 22 as substring.

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 20577 + ... + 26455.

Almost surely, 2138250564 is an apocalyptic number.

138250564 is the 11758-th square number.

It is an amenable number.

138250564 is a deficient number, since it is larger than the sum of its proper divisors (103729083).

138250564 is an frugal number, since it uses more digits than its factorization.

138250564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11762 (or 5881 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The cubic root of 138250564 is about 517.0774962491.

The spelling of 138250564 in words is "one hundred thirty-eight million, two hundred fifty thousand, five hundred sixty-four".

Divisors: 1 2 4 5879 11758 23516 34562641 69125282 138250564