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137386154 = 268693077
BaseRepresentation
bin10000011000001…
…01100010101010
3100120111221101002
420030011202222
5240132324104
621344355002
73255522503
oct1014054252
9316457332
10137386154
1170607284
123a015a62
13226036a9
1414363baa
15c0dc01e
hex83058aa

137386154 has 4 divisors (see below), whose sum is σ = 206079234. Its totient is φ = 68693076.

The previous prime is 137386111. The next prime is 137386189. The reversal of 137386154 is 451683731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 451683731 = 1672704693.

It can be written as a sum of positive squares in only one way, i.e., 112933129 + 24453025 = 10627^2 + 4945^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34346537 + ... + 34346540.

Almost surely, 2137386154 is an apocalyptic number.

137386154 is a deficient number, since it is larger than the sum of its proper divisors (68693080).

137386154 is an equidigital number, since it uses as much as digits as its factorization.

137386154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68693079.

The product of its digits is 60480, while the sum is 38.

The square root of 137386154 is about 11721.1839845640. The cubic root of 137386154 is about 515.9975687444.

The spelling of 137386154 in words is "one hundred thirty-seven million, three hundred eighty-six thousand, one hundred fifty-four".

Divisors: 1 2 68693077 137386154