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68012967 = 31115113649
BaseRepresentation
bin1000000110111…
…00101110100111
311201222102020210
410003130232213
5114402403332
610425430503
71454046351
oct403345647
9151872223
1068012967
1135434170
121a93b433
1311124279
1490660d1
155e86ecc
hex40dcba7

68012967 has 16 divisors (see below), whose sum is σ = 99590400. Its totient is φ = 40944000.

The previous prime is 68012957. The next prime is 68012969. The reversal of 68012967 is 76921086.

It is not a de Polignac number, because 68012967 - 226 = 904103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68012969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842 + ... + 11807.

It is an arithmetic number, because the mean of its divisors is an integer number (6224400).

Almost surely, 268012967 is an apocalyptic number.

68012967 is a deficient number, since it is larger than the sum of its proper divisors (31577433).

68012967 is a wasteful number, since it uses less digits than its factorization.

68012967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13814.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 68012967 is about 8246.9974536191. The cubic root of 68012967 is about 408.1914530632.

The spelling of 68012967 in words is "sixty-eight million, twelve thousand, nine hundred sixty-seven".

Divisors: 1 3 11 33 151 453 1661 4983 13649 40947 150139 450417 2060999 6182997 22670989 68012967