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668033058210 = 23576152149341
BaseRepresentation
bin10011011100010011101…
…11111000010110100010
32100212022101001111110220
421232021313320112202
541421112430330320
61230520134503510
766156324206340
oct11561167702642
92325271044426
10668033058210
11238347278141
12a9576b04b96
134acc273377b
1424493968990
151259c94ae40
hex9b89df85a2

668033058210 has 64 divisors (see below), whose sum is σ = 1862357301504. Its totient is φ = 150190099200.

The previous prime is 668033058137. The next prime is 668033058211. The reversal of 668033058210 is 12850330866.

It is a super-2 number, since 2×6680330582102 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (668033058211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26061861 + ... + 26087480.

It is an arithmetic number, because the mean of its divisors is an integer number (29099332836).

Almost surely, 2668033058210 is an apocalyptic number.

668033058210 is an abundant number, since it is smaller than the sum of its proper divisors (1194324243294).

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

668033058210 is a wasteful number, since it uses less digits than its factorization.

668033058210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52149419.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 668033058210 in words is "six hundred sixty-eight billion, thirty-three million, fifty-eight thousand, two hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 61 70 105 122 183 210 305 366 427 610 854 915 1281 1830 2135 2562 4270 6405 12810 52149341 104298682 156448023 260746705 312896046 365045387 521493410 730090774 782240115 1095136161 1564480230 1825226935 2190272322 3181109801 3650453870 5475680805 6362219602 9543329403 10951361610 15905549005 19086658806 22267768607 31811098010 44535537214 47716647015 66803305821 95433294030 111338843035 133606611642 222677686070 334016529105 668033058210