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57166542686 = 21121489158647
BaseRepresentation
bin110101001111011001…
…000011011101011110
312110120000221021000202
4311033121003131132
51414034113331221
642132325223502
74062432411131
oct651731033536
9173500837022
1057166542686
1122276028700
12b0b4b61b92
135510717426
142aa4440218
151748b09d0b
hexd4f64375e

57166542686 has 24 divisors (see below), whose sum is σ = 94317822480. Its totient is φ = 25967177280.

The previous prime is 57166542677. The next prime is 57166542701. The reversal of 57166542686 is 68624566175.

It is a super-3 number, since 3×571665426863 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281015 + ... + 439661.

It is an arithmetic number, because the mean of its divisors is an integer number (3929909270).

Almost surely, 257166542686 is an apocalyptic number.

57166542686 is a deficient number, since it is larger than the sum of its proper divisors (37151279794).

57166542686 is a wasteful number, since it uses less digits than its factorization.

57166542686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160160 (or 160149 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 56.

The spelling of 57166542686 in words is "fifty-seven billion, one hundred sixty-six million, five hundred forty-two thousand, six hundred eighty-six".

Divisors: 1 2 11 22 121 242 1489 2978 16379 32758 158647 180169 317294 360338 1745117 3490234 19196287 38392574 236225383 472450766 2598479213 5196958426 28583271343 57166542686