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137245980 = 22352978877
BaseRepresentation
bin10000010111000…
…11010100011100
3100120020211002110
420023203110130
5240113332410
621341354020
73254400024
oct1013432434
9316224073
10137245980
1170520a33
1239b68910
1322584951
1414328a84
15c0b0720
hex82e351c

137245980 has 48 divisors (see below), whose sum is σ = 397545120. Its totient is φ = 35336448.

The previous prime is 137245963. The next prime is 137246003. The reversal of 137245980 is 89542731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37699 + ... + 41178.

It is an arithmetic number, because the mean of its divisors is an integer number (8282190).

Almost surely, 2137245980 is an apocalyptic number.

137245980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137245980 is an abundant number, since it is smaller than the sum of its proper divisors (260299140).

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

137245980 is a wasteful number, since it uses less digits than its factorization.

137245980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78918 (or 78916 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 137245980 is about 11715.2029431846. The cubic root of 137245980 is about 515.8220196222.

The spelling of 137245980 in words is "one hundred thirty-seven million, two hundred forty-five thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 348 435 580 870 1740 78877 157754 236631 315508 394385 473262 788770 946524 1183155 1577540 2287433 2366310 4574866 4732620 6862299 9149732 11437165 13724598 22874330 27449196 34311495 45748660 68622990 137245980