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68292041768 = 23298919317137
BaseRepresentation
bin111111100110100001…
…011101110000101000
320112021101112011122022
4333212201131300220
52104330230314033
651212315244012
74635224530406
oct774641356050
9215241464568
1068292041768
1126a65093845
121129aa49608
136594642992
14343bc5c476
151b9a6d9098
hexfe685dc28

68292041768 has 64 divisors (see below), whose sum is σ = 134653266000. Its totient is φ = 32427343872.

The previous prime is 68292041723. The next prime is 68292041771. The reversal of 68292041768 is 86714029286.

It can be written as a sum of positive squares in 8 ways, for example, as 1357038244 + 66935003524 = 36838^2 + 258718^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3976496 + ... + 3993632.

Almost surely, 268292041768 is an apocalyptic number.

It is an amenable number.

68292041768 is a deficient number, since it is larger than the sum of its proper divisors (66361224232).

68292041768 is a wasteful number, since it uses less digits than its factorization.

68292041768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17454 (or 17450 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 68292041768 in words is "sixty-eight billion, two hundred ninety-two million, forty-one thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 29 58 89 116 178 193 232 356 386 712 772 1544 2581 5162 5597 10324 11194 17137 17177 20648 22388 34274 34354 44776 68548 68708 137096 137416 496973 498133 993946 996266 1525193 1987892 1992532 3050386 3307441 3975784 3985064 6100772 6614882 12201544 13229764 26459528 44230597 88461194 95915789 176922388 191831578 294362249 353844776 383663156 588724498 767326312 1177448996 2354897992 8536505221 17073010442 34146020884 68292041768