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137272180 = 22510616469
BaseRepresentation
bin10000010111010…
…01101101110100
3100120022011000211
420023221231310
5240120202210
621342115204
73254536303
oct1013515564
9316264024
10137272180
1170539691
1239b7bb04
1322593856
141433443a
15c0b838a
hex82e9b74

137272180 has 24 divisors (see below), whose sum is σ = 288587880. Its totient is φ = 54848640.

The previous prime is 137272147. The next prime is 137272237. The reversal of 137272180 is 81272731.

137272180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2108304 + 135163876 = 1452^2 + 11626^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17986 + ... + 24454.

It is an arithmetic number, because the mean of its divisors is an integer number (12024495).

Almost surely, 2137272180 is an apocalyptic number.

137272180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137272180 is an abundant number, since it is smaller than the sum of its proper divisors (151315700).

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

137272180 is a wasteful number, since it uses less digits than its factorization.

137272180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7539 (or 7537 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 137272180 is about 11716.3210949513. The cubic root of 137272180 is about 515.8548406857.

The spelling of 137272180 in words is "one hundred thirty-seven million, two hundred seventy-two thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 1061 2122 4244 5305 6469 10610 12938 21220 25876 32345 64690 129380 6863609 13727218 27454436 34318045 68636090 137272180