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68100712972 = 2223740225141
BaseRepresentation
bin111111011011000111…
…100110101000001100
320111210001111122212121
4333123013212220030
52103432240303342
651141322342324
74630412336455
oct773307465014
9214701448777
1068100712972
1126977093676
121124695a9a4
136563b03486
14342069612c
151b889e4067
hexfdb1e6a0c

68100712972 has 12 divisors (see below), whose sum is σ = 124357823856. Its totient is φ = 32569906160.

The previous prime is 68100712961. The next prime is 68100713003. The reversal of 68100712972 is 27921700186.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370112479 + ... + 370112662.

It is an arithmetic number, because the mean of its divisors is an integer number (10363151988).

Almost surely, 268100712972 is an apocalyptic number.

It is an amenable number.

68100712972 is a deficient number, since it is larger than the sum of its proper divisors (56257110884).

68100712972 is a wasteful number, since it uses less digits than its factorization.

68100712972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740225168 (or 740225166 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 68100712972 in words is "sixty-eight billion, one hundred million, seven hundred twelve thousand, nine hundred seventy-two".

Divisors: 1 2 4 23 46 92 740225141 1480450282 2960900564 17025178243 34050356486 68100712972