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68867459104 = 253733576509
BaseRepresentation
bin100000000100011010…
…0100000100000100000
320120202111021101211111
41000020310200200200
52112020032142404
651345352353104
74655412513103
oct1001064404040
9216674241744
1068867459104
112722a981364
121141b6a5794
136656912302
14349444673a
151bd0e9d104
hex1008d20820

68867459104 has 24 divisors (see below), whose sum is σ = 135619365420. Its totient is φ = 34424445696.

The previous prime is 68867459069. The next prime is 68867459107. The reversal of 68867459104 is 40195476886.

It can be written as a sum of positive squares in 2 ways, for example, as 68148146704 + 719312400 = 261052^2 + 26820^2 .

It is a super-2 number, since 2×688674591042 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68867459107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168799 + ... + 407710.

Almost surely, 268867459104 is an apocalyptic number.

It is an amenable number.

68867459104 is a deficient number, since it is larger than the sum of its proper divisors (66751906316).

68867459104 is a wasteful number, since it uses less digits than its factorization.

68867459104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580252 (or 580244 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 68867459104 in words is "sixty-eight billion, eight hundred sixty-seven million, four hundred fifty-nine thousand, one hundred four".

Divisors: 1 2 4 8 16 32 3733 7466 14932 29864 59728 119456 576509 1153018 2306036 4612072 9224144 18448288 2152108097 4304216194 8608432388 17216864776 34433729552 68867459104