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137161240 = 235109163193
BaseRepresentation
bin10000010110011…
…10101000011000
3100120002111211221
420023032220120
5240103124430
621335501424
73253564666
oct1013165030
9316074757
10137161240
11704732a7
1239b27874
13225551c8
1414305c36
15c09557a
hex82cea18

137161240 has 64 divisors (see below), whose sum is σ = 314978400. Its totient is φ = 53747712.

The previous prime is 137161231. The next prime is 137161243. The reversal of 137161240 is 42161731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137161243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710584 + ... + 710776.

Almost surely, 2137161240 is an apocalyptic number.

137161240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137161240 is an abundant number, since it is smaller than the sum of its proper divisors (177817160).

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

137161240 is a wasteful number, since it uses less digits than its factorization.

137161240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 137161240 is about 11711.5857167166. The cubic root of 137161240 is about 515.7158361669.

The spelling of 137161240 in words is "one hundred thirty-seven million, one hundred sixty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 109 163 193 218 326 386 436 545 652 772 815 872 965 1090 1304 1544 1630 1930 2180 3260 3860 4360 6520 7720 17767 21037 31459 35534 42074 62918 71068 84148 88835 105185 125836 142136 157295 168296 177670 210370 251672 314590 355340 420740 629180 710680 841480 1258360 3429031 6858062 13716124 17145155 27432248 34290310 68580620 137161240