Search a number
-
+
137279930 = 25171077547
BaseRepresentation
bin10000010111010…
…11100110111010
3100120022112122212
420023223212322
5240120424210
621342215122
73254601014
oct1013534672
9316275585
10137279930
1170544497
1239b844a2
1322597238
14143371b4
15c0ba805
hex82eb9ba

137279930 has 32 divisors (see below), whose sum is σ = 264119616. Its totient is φ = 51192064.

The previous prime is 137279917. The next prime is 137279957. The reversal of 137279930 is 39972731.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14417 + ... + 21963.

It is an arithmetic number, because the mean of its divisors is an integer number (8253738).

Almost surely, 2137279930 is an apocalyptic number.

137279930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137279930 is a deficient number, since it is larger than the sum of its proper divisors (126839686).

137279930 is a wasteful number, since it uses less digits than its factorization.

137279930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7678.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 137279930 is about 11716.6518255003. The cubic root of 137279930 is about 515.8645484059.

The spelling of 137279930 in words is "one hundred thirty-seven million, two hundred seventy-nine thousand, nine hundred thirty".

Divisors: 1 2 5 10 17 34 85 107 170 214 535 1070 1819 3638 7547 9095 15094 18190 37735 75470 128299 256598 641495 807529 1282990 1615058 4037645 8075290 13727993 27455986 68639965 137279930