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137357740 = 22513528299
BaseRepresentation
bin10000010111111…
…10100110101100
3100120110111101201
420023332212230
5240130421430
621344015244
73255343612
oct1013764654
9316414351
10137357740
11705979a3
123a001524
13225c3790
14143576b2
15c0d38ca
hex82fe9ac

137357740 has 24 divisors (see below), whose sum is σ = 310640400. Its totient is φ = 50716608.

The previous prime is 137357713. The next prime is 137357743. The reversal of 137357740 is 47753731.

It is a self number, because there is not a number n which added to its sum of digits gives 137357740.

It is not an unprimeable number, because it can be changed into a prime (137357743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263890 + ... + 264409.

It is an arithmetic number, because the mean of its divisors is an integer number (12943350).

Almost surely, 2137357740 is an apocalyptic number.

137357740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137357740 is an abundant number, since it is smaller than the sum of its proper divisors (173282660).

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

137357740 is a wasteful number, since it uses less digits than its factorization.

137357740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528321 (or 528319 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 137357740 is about 11719.9718429696. The cubic root of 137357740 is about 515.9619936753.

The spelling of 137357740 in words is "one hundred thirty-seven million, three hundred fifty-seven thousand, seven hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 528299 1056598 2113196 2641495 5282990 6867887 10565980 13735774 27471548 34339435 68678870 137357740