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137768960 = 21257312
BaseRepresentation
bin10000011011000…
…11000000000000
3100121020101111002
420031203000000
5240232101320
621400511132
73262005530
oct1015430000
9317211432
10137768960
117084894a
123a17b4a8
13227089c4
14144234c0
15c165675
hex8363000

137768960 has 156 divisors (see below), whose sum is σ = 390415824. Its totient is φ = 45711360.

The previous prime is 137768941. The next prime is 137768971. The reversal of 137768960 is 69867731.

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, 4444145 + ... + 4444175.

Almost surely, 2137768960 is an apocalyptic number.

137768960 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 137768960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195207912).

137768960 is an abundant number, since it is smaller than the sum of its proper divisors (252646864).

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

137768960 is an frugal number, since it uses more digits than its factorization.

137768960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 137768960 is about 11737.5022896696. The cubic root of 137768960 is about 516.4763743669.

The spelling of 137768960 in words is "one hundred thirty-seven million, seven hundred sixty-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 31 32 35 40 56 62 64 70 80 112 124 128 140 155 160 217 224 248 256 280 310 320 434 448 496 512 560 620 640 868 896 961 992 1024 1085 1120 1240 1280 1736 1792 1922 1984 2048 2170 2240 2480 2560 3472 3584 3844 3968 4096 4340 4480 4805 4960 5120 6727 6944 7168 7688 7936 8680 8960 9610 9920 10240 13454 13888 14336 15376 15872 17360 17920 19220 19840 20480 26908 27776 28672 30752 31744 33635 34720 35840 38440 39680 53816 55552 61504 63488 67270 69440 71680 76880 79360 107632 111104 123008 126976 134540 138880 143360 153760 158720 215264 222208 246016 269080 277760 307520 317440 430528 444416 492032 538160 555520 615040 634880 861056 888832 984064 1076320 1111040 1230080 1722112 1968128 2152640 2222080 2460160 3444224 3936256 4305280 4444160 4920320 6888448 8610560 9840640 13776896 17221120 19681280 27553792 34442240 68884480 137768960