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68315053330 = 25231303722783
BaseRepresentation
bin111111100111111001…
…001111110100010010
320112022222211021120101
4333213321033310102
52104402123201310
651214500403014
74635624241456
oct774771176422
9215288737511
1068315053330
1126a77080767
12112a66a646a
13659933baa4
143440d2c666
151b9c73243a
hexfe7e4fd12

68315053330 has 32 divisors (see below), whose sum is σ = 128328966144. Its totient is φ = 26134781376.

The previous prime is 68315053283. The next prime is 68315053357. The reversal of 68315053330 is 3335051386.

It is a super-2 number, since 2×683150533302 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68315053330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2987119 + ... + 3009901.

It is an arithmetic number, because the mean of its divisors is an integer number (4010280192).

Almost surely, 268315053330 is an apocalyptic number.

68315053330 is a deficient number, since it is larger than the sum of its proper divisors (60013912814).

68315053330 is a wasteful number, since it uses less digits than its factorization.

68315053330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35850.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 68315053330 in words is "sixty-eight billion, three hundred fifteen million, fifty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 13037 22783 26074 45566 65185 113915 130370 227830 299851 524009 599702 1048018 1499255 2620045 2998510 5240090 297021971 594043942 1485109855 2970219710 6831505333 13663010666 34157526665 68315053330