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68492261682 = 232131961713557
BaseRepresentation
bin111111110010011101…
…001111100100110010
320112210100021101201200
4333302131033210302
52110233004333212
651244230512030
74643205422055
oct776235174462
9215710241650
1068492261682
1127058106a49
1211335b05616
1365c6c760c0
14345a69aa9c
151bad0886dc
hexff274f932

68492261682 has 192 divisors, whose sum is σ = 173441399040. Its totient is φ = 19356019200.

The previous prime is 68492261641. The next prime is 68492261693. The reversal of 68492261682 is 28616229486.

68492261682 is a `hidden beast` number, since 68 + 492 + 2 + 6 + 16 + 82 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19253848 + ... + 19257404.

It is an arithmetic number, because the mean of its divisors is an integer number (903340620).

Almost surely, 268492261682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68492261682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86720699520).

68492261682 is an abundant number, since it is smaller than the sum of its proper divisors (104949137358).

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

68492261682 is a wasteful number, since it uses less digits than its factorization.

68492261682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3729 (or 3726 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 68492261682 in words is "sixty-eight billion, four hundred ninety-two million, two hundred sixty-one thousand, six hundred eighty-two".