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137981762 = 21921117209
BaseRepresentation
bin10000011100101…
…10111101000010
3100121122012101122
420032112331002
5240310404022
621405232242
73263553122
oct1016267502
9317565348
10137981762
1170983816
123a262682
1322781819
141447ac82
15c1a8742
hex8396f42

137981762 has 16 divisors (see below), whose sum is σ = 218911200. Its totient is φ = 65046240.

The previous prime is 137981747. The next prime is 137981783. The reversal of 137981762 is 267189731.

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 7 ways as a sum of consecutive naturals, for example, 587 + ... + 16622.

It is an arithmetic number, because the mean of its divisors is an integer number (13681950).

Almost surely, 2137981762 is an apocalyptic number.

137981762 is a deficient number, since it is larger than the sum of its proper divisors (80929438).

137981762 is a wasteful number, since it uses less digits than its factorization.

137981762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17441.

The product of its digits is 127008, while the sum is 44.

The square root of 137981762 is about 11746.5638379911. The cubic root of 137981762 is about 516.7421591158.

The spelling of 137981762 in words is "one hundred thirty-seven million, nine hundred eighty-one thousand, seven hundred sixty-two".

Divisors: 1 2 19 38 211 422 4009 8018 17209 34418 326971 653942 3631099 7262198 68990881 137981762