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136807790 = 25719293547
BaseRepresentation
bin10000010011110…
…00010101101110
3100112102120000012
420021320111232
5240010322130
621324133222
73250563350
oct1011702556
9315376005
10136807790
1170251799
1239997212
1322460372
14142530d0
15c025995
hex827856e

136807790 has 64 divisors (see below), whose sum is σ = 306547200. Its totient is φ = 42892416.

The previous prime is 136807763. The next prime is 136807817. The reversal of 136807790 is 97708631.

It is an interprime number because it is at equal distance from previous prime (136807763) and next prime (136807817).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 36797 + ... + 40343.

It is an arithmetic number, because the mean of its divisors is an integer number (4789800).

Almost surely, 2136807790 is an apocalyptic number.

136807790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136807790 is an abundant number, since it is smaller than the sum of its proper divisors (169739410).

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

136807790 is a wasteful number, since it uses less digits than its factorization.

136807790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 136807790 is about 11696.4862245035. The cubic root of 136807790 is about 515.2724734047.

The spelling of 136807790 in words is "one hundred thirty-six million, eight hundred seven thousand, seven hundred ninety".

Divisors: 1 2 5 7 10 14 19 29 35 38 58 70 95 133 145 190 203 266 290 406 551 665 1015 1102 1330 2030 2755 3547 3857 5510 7094 7714 17735 19285 24829 35470 38570 49658 67393 102863 124145 134786 205726 248290 336965 471751 514315 673930 720041 943502 1028630 1440082 1954397 2358755 3600205 3908794 4717510 7200410 9771985 13680779 19543970 27361558 68403895 136807790