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137021080 = 2357489361
BaseRepresentation
bin10000010101011…
…00011010011000
3100112211101120211
420022230122120
5240034133310
621332500504
73252442240
oct1012543230
9315741524
10137021080
1170387a69
1239a7a734
1322506481
14142aab20
15c068c8a
hex82ac698

137021080 has 32 divisors (see below), whose sum is σ = 352340640. Its totient is φ = 46978560.

The previous prime is 137021063. The next prime is 137021081. The reversal of 137021080 is 80120731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137021081) 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 7 ways as a sum of consecutive naturals, for example, 244401 + ... + 244960.

It is an arithmetic number, because the mean of its divisors is an integer number (11010645).

Almost surely, 2137021080 is an apocalyptic number.

137021080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137021080 is an abundant number, since it is smaller than the sum of its proper divisors (215319560).

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

137021080 is a wasteful number, since it uses less digits than its factorization.

137021080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489379 (or 489375 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 137021080 is about 11705.6003690541. The cubic root of 137021080 is about 515.5401126496.

The spelling of 137021080 in words is "one hundred thirty-seven million, twenty-one thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 489361 978722 1957444 2446805 3425527 3914888 4893610 6851054 9787220 13702108 17127635 19574440 27404216 34255270 68510540 137021080