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68271914740972 = 2217067978685243
BaseRepresentation
bin11111000010111110010110…
…01110011110110011101100
322221201201202010022222000211
433201133023032132303230
532422031340133202342
6401111403515032204
720244324456214555
oct1741371316366354
9287651663288024
1068271914740972
111a831a58031868
1277a767a13b664
132c13024801487
1412c05420d332c
157d5d9871dc17
hex3e17cb39ecec

68271914740972 has 6 divisors (see below), whose sum is σ = 119475850796708. Its totient is φ = 34135957370484.

The previous prime is 68271914740969. The next prime is 68271914740993. The reversal of 68271914740972 is 27904741917286.

It is a super-2 number, since 2×682719147409722 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68271914740898 and 68271914740907.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8533989342618 + ... + 8533989342625.

Almost surely, 268271914740972 is an apocalyptic number.

It is an amenable number.

68271914740972 is a deficient number, since it is larger than the sum of its proper divisors (51203936055736).

68271914740972 is a wasteful number, since it uses less digits than its factorization.

68271914740972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17067978685247 (or 17067978685245 counting only the distinct ones).

The product of its (nonzero) digits is 85349376, while the sum is 67.

The spelling of 68271914740972 in words is "sixty-eight trillion, two hundred seventy-one billion, nine hundred fourteen million, seven hundred forty thousand, nine hundred seventy-two".

Divisors: 1 2 4 17067978685243 34135957370486 68271914740972