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137405874 = 2371322549
BaseRepresentation
bin10000011000010…
…10010110110010
3100120112221102110
420030022112302
5240133441444
621345030150
73255634134
oct1014122662
9316487373
10137405874
1170620081
123a025356
132260c668
141436b054
15c0e2cb9
hex830a5b2

137405874 has 16 divisors (see below), whose sum is σ = 278683200. Its totient is φ = 45156720.

The previous prime is 137405861. The next prime is 137405881. The reversal of 137405874 is 478504731.

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, 160849 + ... + 161700.

It is an arithmetic number, because the mean of its divisors is an integer number (17417700).

Almost surely, 2137405874 is an apocalyptic number.

137405874 is an abundant number, since it is smaller than the sum of its proper divisors (141277326).

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

137405874 is a wasteful number, since it uses less digits than its factorization.

137405874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322625.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 137405874 is about 11722.0251663268. The cubic root of 137405874 is about 516.0222558155.

The spelling of 137405874 in words is "one hundred thirty-seven million, four hundred five thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 71 142 213 426 322549 645098 967647 1935294 22900979 45801958 68702937 137405874