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137982260 = 22513530701
BaseRepresentation
bin10000011100101…
…11000100110100
3100121122020002002
420032113010310
5240310413020
621405234432
73263554433
oct1016270464
9317566062
10137982260
1170984129
123a262a18
1322781b10
141447b11a
15c1a8975
hex8397134

137982260 has 24 divisors (see below), whose sum is σ = 312052776. Its totient is φ = 50947200.

The previous prime is 137982259. The next prime is 137982281. The reversal of 137982260 is 62289731.

It can be written as a sum of positive squares in 4 ways, for example, as 2446096 + 135536164 = 1564^2 + 11642^2 .

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, 265091 + ... + 265610.

It is an arithmetic number, because the mean of its divisors is an integer number (13002199).

Almost surely, 2137982260 is an apocalyptic number.

137982260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137982260 is an abundant number, since it is smaller than the sum of its proper divisors (174070516).

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

137982260 is a wasteful number, since it uses less digits than its factorization.

137982260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530723 (or 530721 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 137982260 is about 11746.5850356604. The cubic root of 137982260 is about 516.7427807856.

The spelling of 137982260 in words is "one hundred thirty-seven million, nine hundred eighty-two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 530701 1061402 2122804 2653505 5307010 6899113 10614020 13798226 27596452 34495565 68991130 137982260