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68583943610 = 2571375366971
BaseRepresentation
bin111111110111111010…
…111110110110111010
320120000201210022200122
4333313322332312322
52110424442143420
651301303533242
74645400621240
oct776772766672
9216021708618
1068583943610
11270a4936a36
121136075a222
13660cc66770
143468924790
151bb6148725
hexff7ebedba

68583943610 has 32 divisors (see below), whose sum is σ = 151939815552. Its totient is φ = 21705687360.

The previous prime is 68583943567. The next prime is 68583943643. The reversal of 68583943610 is 1634938586.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37682576 + ... + 37684395.

It is an arithmetic number, because the mean of its divisors is an integer number (4748119236).

Almost surely, 268583943610 is an apocalyptic number.

68583943610 is an abundant number, since it is smaller than the sum of its proper divisors (83355871942).

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

68583943610 is a wasteful number, since it uses less digits than its factorization.

68583943610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75366998.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 68583943610 in words is "sixty-eight billion, five hundred eighty-three million, nine hundred forty-three thousand, six hundred ten".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 75366971 150733942 376834855 527568797 753669710 979770623 1055137594 1959541246 2637843985 4898853115 5275687970 6858394361 9797706230 13716788722 34291971805 68583943610