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137271870 = 23251525243
BaseRepresentation
bin10000010111010…
…01101000111110
3100120022010121100
420023221220332
5240120144440
621342113530
73254535351
oct1013515076
9316263540
10137271870
117053942a
1239b7b8a6
1322593678
1414334298
15c0b8230
hex82e9a3e

137271870 has 24 divisors (see below), whose sum is σ = 356907096. Its totient is φ = 36605808.

The previous prime is 137271863. The next prime is 137271919. The reversal of 137271870 is 78172731.

It is a happy number.

137271870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 762532 + ... + 762711.

It is an arithmetic number, because the mean of its divisors is an integer number (14871129).

Almost surely, 2137271870 is an apocalyptic number.

137271870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137271870 is an abundant number, since it is smaller than the sum of its proper divisors (219635226).

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

137271870 is a wasteful number, since it uses less digits than its factorization.

137271870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525256 (or 1525253 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 36.

The square root of 137271870 is about 11716.3078655351. The cubic root of 137271870 is about 515.8544523692.

The spelling of 137271870 in words is "one hundred thirty-seven million, two hundred seventy-one thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1525243 3050486 4575729 7626215 9151458 13727187 15252430 22878645 27454374 45757290 68635935 137271870