Search a number
-
+
137957872 = 24132922871
BaseRepresentation
bin10000011100100…
…01000111110000
3100121120222121211
420032101013300
5240304122442
621404525504
73263423353
oct1016210760
9317528554
10137957872
1170967878
123a250894
13227739a0
141447229a
15c1a1617
hex83911f0

137957872 has 40 divisors (see below), whose sum is σ = 297793440. Its totient is φ = 61474560.

The previous prime is 137957861. The next prime is 137957893. The reversal of 137957872 is 278759731.

It is a happy number.

It is a super-3 number, since 3×1379578723 (a number of 25 digits) contains 333 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 7 ways as a sum of consecutive naturals, for example, 5404 + ... + 17467.

It is an arithmetic number, because the mean of its divisors is an integer number (7444836).

Almost surely, 2137957872 is an apocalyptic number.

It is an amenable number.

137957872 is an abundant number, since it is smaller than the sum of its proper divisors (159835568).

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

137957872 is a wasteful number, since it uses less digits than its factorization.

137957872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22921 (or 22915 counting only the distinct ones).

The product of its digits is 740880, while the sum is 49.

The square root of 137957872 is about 11745.5469008471. The cubic root of 137957872 is about 516.7123346845.

The spelling of 137957872 in words is "one hundred thirty-seven million, nine hundred fifty-seven thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 13 16 26 29 52 58 104 116 208 232 377 464 754 1508 3016 6032 22871 45742 91484 182968 297323 365936 594646 663259 1189292 1326518 2378584 2653036 4757168 5306072 8622367 10612144 17244734 34489468 68978936 137957872