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69168668 = 2273236879
BaseRepresentation
bin1000001111101…
…10111000011100
311211011010120112
410013312320130
5120201344133
610510305152
71466631632
oct407667034
9154133515
1069168668
1136053498
121b1b81b8
131143a30a
149287352
156114648
hex41f6e1c

69168668 has 12 divisors (see below), whose sum is σ = 122703840. Its totient is φ = 34110432.

The previous prime is 69168667. The next prime is 69168679. The reversal of 69168668 is 86686196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69168661) 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, 118148 + ... + 118731.

It is an arithmetic number, because the mean of its divisors is an integer number (10225320).

Almost surely, 269168668 is an apocalyptic number.

It is an amenable number.

69168668 is a deficient number, since it is larger than the sum of its proper divisors (53535172).

69168668 is a wasteful number, since it uses less digits than its factorization.

69168668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236956 (or 236954 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 69168668 is about 8316.7702865956. The cubic root of 69168668 is about 410.4905253329.

The spelling of 69168668 in words is "sixty-nine million, one hundred sixty-eight thousand, six hundred sixty-eight".

Divisors: 1 2 4 73 146 292 236879 473758 947516 17292167 34584334 69168668