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68724419204 = 22715116254593
BaseRepresentation
bin100000000000001001…
…0110110101010000100
320120101112010012222102
41000000102312222010
52111221422403304
651323242451232
74652024632130
oct1000022665204
9216345105872
1068724419204
1127167163371
121139b803b18
1366330ac40c
14347d4503c0
151bc3645d1e
hex10004b6a84

68724419204 has 24 divisors (see below), whose sum is σ = 138359104128. Its totient is φ = 29258265600.

The previous prime is 68724419191. The next prime is 68724419251. The reversal of 68724419204 is 40291442786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8123069 + ... + 8131524.

It is an arithmetic number, because the mean of its divisors is an integer number (5764962672).

Almost surely, 268724419204 is an apocalyptic number.

It is an amenable number.

68724419204 is an abundant number, since it is smaller than the sum of its proper divisors (69634684924).

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

68724419204 is a wasteful number, since it uses less digits than its factorization.

68724419204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16254755 (or 16254753 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 68724419204 in words is "sixty-eight billion, seven hundred twenty-four million, four hundred nineteen thousand, two hundred four".

Divisors: 1 2 4 7 14 28 151 302 604 1057 2114 4228 16254593 32509186 65018372 113782151 227564302 455128604 2454443543 4908887086 9817774172 17181104801 34362209602 68724419204