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68458073586 = 23723479147949
BaseRepresentation
bin111111110000011010…
…110100110111110010
320112200221221110110220
4333300122310313302
52110200231323321
651241010033510
74642312011240
oct776032646762
9215627843426
1068458073586
112703a885a21
1211326578896
1365bcb65a66
143455d1b790
151baa0839c6
hexff06b4df2

68458073586 has 64 divisors (see below), whose sum is σ = 163620864000. Its totient is φ = 18669854016.

The previous prime is 68458073569. The next prime is 68458073599. The reversal of 68458073586 is 68537085486.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388740 + ... + 536688.

It is an arithmetic number, because the mean of its divisors is an integer number (2556576000).

Almost surely, 268458073586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68458073586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81810432000).

68458073586 is an abundant number, since it is smaller than the sum of its proper divisors (95162790414).

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

68458073586 is a wasteful number, since it uses less digits than its factorization.

68458073586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148463.

The product of its (nonzero) digits is 38707200, while the sum is 60.

The spelling of 68458073586 in words is "sixty-eight billion, four hundred fifty-eight million, seventy-three thousand, five hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 23 42 46 69 138 161 322 479 483 958 966 1437 2874 3353 6706 10059 11017 20118 22034 33051 66102 77119 147949 154238 231357 295898 443847 462714 887694 1035643 2071286 3106929 3402827 6213858 6805654 10208481 20416962 23819789 47639578 70867571 71459367 141735142 142918734 212602713 425205426 496072997 992145994 1488218991 1629954133 2976437982 3259908266 4889862399 9779724798 11409678931 22819357862 34229036793 68458073586