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137290718 = 2145147309
BaseRepresentation
bin10000010111011…
…10001111011110
3100120100002110102
420023232033132
5240121300333
621342341102
73254644325
oct1013561736
9316302412
10137290718
1170551604
1239b8a792
132259c116
141433b0bc
15c0bdae8
hex82ee3de

137290718 has 8 divisors (see below), whose sum is σ = 206082360. Its totient is φ = 68596600.

The previous prime is 137290709. The next prime is 137290721. The reversal of 137290718 is 817092731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20753 + ... + 26556.

It is an arithmetic number, because the mean of its divisors is an integer number (25760295).

Almost surely, 2137290718 is an apocalyptic number.

137290718 is a deficient number, since it is larger than the sum of its proper divisors (68791642).

137290718 is a wasteful number, since it uses less digits than its factorization.

137290718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48762.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 137290718 is about 11717.1121868829. The cubic root of 137290718 is about 515.8780609443.

The spelling of 137290718 in words is "one hundred thirty-seven million, two hundred ninety thousand, seven hundred eighteen".

Divisors: 1 2 1451 2902 47309 94618 68645359 137290718