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137680851 = 3711596021
BaseRepresentation
bin10000011010011…
…01011111010011
3100121001220121210
420031031133103
5240221241401
621354551203
73261160620
oct1015153723
9317056553
10137680851
1170798730
123a138503
13226a7879
14143dd347
15c1494d6
hex834d7d3

137680851 has 16 divisors (see below), whose sum is σ = 228872448. Its totient is φ = 71522400.

The previous prime is 137680831. The next prime is 137680853. The reversal of 137680851 is 158086731.

137680851 = 12992 + 13002 + ... + 13752.

It is not a de Polignac number, because 137680851 - 214 = 137664467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137680853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297780 + ... + 298241.

It is an arithmetic number, because the mean of its divisors is an integer number (14304528).

Almost surely, 2137680851 is an apocalyptic number.

137680851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

137680851 is a deficient number, since it is larger than the sum of its proper divisors (91191597).

137680851 is a wasteful number, since it uses less digits than its factorization.

137680851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596042.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 137680851 is about 11733.7483780760. The cubic root of 137680851 is about 516.3662481543.

The spelling of 137680851 in words is "one hundred thirty-seven million, six hundred eighty thousand, eight hundred fifty-one".

Divisors: 1 3 7 11 21 33 77 231 596021 1788063 4172147 6556231 12516441 19668693 45893617 137680851