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137824080 = 24355571031
BaseRepresentation
bin10000011011100…
…00011101010000
3100121100012002120
420031300131100
5240240332310
621402014240
73262325322
oct1015603520
9317305076
10137824080
11708862a9
123a1a7380
1322727b14
1414439612
15c176b70
hex8370750

137824080 has 80 divisors (see below), whose sum is σ = 428436864. Its totient is φ = 36651520.

The previous prime is 137824067. The next prime is 137824087. The reversal of 137824080 is 80428731.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137824087) 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, 133165 + ... + 134195.

Almost surely, 2137824080 is an apocalyptic number.

137824080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137824080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214218432).

137824080 is an abundant number, since it is smaller than the sum of its proper divisors (290612784).

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

137824080 is a wasteful number, since it uses less digits than its factorization.

137824080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604 (or 1598 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 137824080 is about 11739.8500842217. The cubic root of 137824080 is about 516.5452442149.

The spelling of 137824080 in words is "one hundred thirty-seven million, eight hundred twenty-four thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 557 1031 1114 1671 2062 2228 2785 3093 3342 4124 4456 5155 5570 6186 6684 8248 8355 8912 10310 11140 12372 13368 15465 16496 16710 20620 22280 24744 26736 30930 33420 41240 44560 49488 61860 66840 82480 123720 133680 247440 574267 1148534 1722801 2297068 2871335 3445602 4594136 5742670 6891204 8614005 9188272 11485340 13782408 17228010 22970680 27564816 34456020 45941360 68912040 137824080