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137628800 = 2752411049
BaseRepresentation
bin10000011010000…
…00110010000000
3100120222021012222
420031000302000
5240213110200
621353510212
73260553101
oct1015006200
9316867188
10137628800
1170762611
123a112368
1322689c7a
14143c83a8
15c138d85
hex8340c80

137628800 has 96 divisors (see below), whose sum is σ = 348610500. Its totient is φ = 53657600.

The previous prime is 137628797. The next prime is 137628817. The reversal of 137628800 is 8826731.

It can be written as a sum of positive squares in 6 ways, for example, as 43771456 + 93857344 = 6616^2 + 9688^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130676 + ... + 131724.

Almost surely, 2137628800 is an apocalyptic number.

137628800 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 137628800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174305250).

137628800 is an abundant number, since it is smaller than the sum of its proper divisors (210981700).

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

137628800 is a wasteful number, since it uses less digits than its factorization.

137628800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 137628800 is about 11731.5301644756. The cubic root of 137628800 is about 516.3011682560.

The spelling of 137628800 in words is "one hundred thirty-seven million, six hundred twenty-eight thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 41 50 64 80 82 100 128 160 164 200 205 320 328 400 410 640 656 800 820 1025 1049 1312 1600 1640 2050 2098 2624 3200 3280 4100 4196 5245 5248 6560 8200 8392 10490 13120 16400 16784 20980 26225 26240 32800 33568 41960 43009 52450 65600 67136 83920 86018 104900 131200 134272 167840 172036 209800 215045 335680 344072 419600 430090 671360 688144 839200 860180 1075225 1376288 1678400 1720360 2150450 2752576 3356800 3440720 4300900 5505152 6881440 8601800 13762880 17203600 27525760 34407200 68814400 137628800