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68868629424 = 2432768322053
BaseRepresentation
bin100000000100011100…
…0111110001110110000
320120202120110212012200
41000020320332032300
52112020332120144
651345433423200
74655425456110
oct1001070761660
9216676425180
1068868629424
1127230600671
121141bb6ab00
136656c31bca
14349466d040
151bd112ec69
hex1008e3e3b0

68868629424 has 60 divisors (see below), whose sum is σ = 220270302096. Its totient is φ = 19676750976.

The previous prime is 68868629387. The next prime is 68868629521. The reversal of 68868629424 is 42492686886.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34160019 + ... + 34162034.

Almost surely, 268868629424 is an apocalyptic number.

It is an amenable number.

68868629424 is an abundant number, since it is smaller than the sum of its proper divisors (151401672672).

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

68868629424 is a wasteful number, since it uses less digits than its factorization.

68868629424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68322074 (or 68322065 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 63.

The spelling of 68868629424 in words is "sixty-eight billion, eight hundred sixty-eight million, six hundred twenty-nine thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 68322053 136644106 204966159 273288212 409932318 478254371 546576424 614898477 819864636 956508742 1093152848 1229796954 1434763113 1639729272 1913017484 2459593908 2869526226 3279458544 3826034968 4304289339 4919187816 5739052452 7652069936 8608578678 9838375632 11478104904 17217157356 22956209808 34434314712 68868629424