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67965764 = 2231217681
BaseRepresentation
bin1000000110100…
…01001101000100
311201220000111112
410003101031010
5114344401024
610424424152
71453461626
oct403211504
9151800445
1067965764
1135401759
121a918058
1311108939
149052c16
155e7800e
hex40d1344

67965764 has 18 divisors (see below), whose sum is σ = 122907582. Its totient is φ = 32884800.

The previous prime is 67965761. The next prime is 67965787. The reversal of 67965764 is 46756976.

It can be written as a sum of positive squares in only one way, i.e., 51724864 + 16240900 = 7192^2 + 4030^2 .

It is a super-2 number, since 2×679657642 = 9238690152207392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67965761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4997 + ... + 12684.

It is an arithmetic number, because the mean of its divisors is an integer number (6828199).

Almost surely, 267965764 is an apocalyptic number.

It is an amenable number.

67965764 is a deficient number, since it is larger than the sum of its proper divisors (54941818).

67965764 is a wasteful number, since it uses less digits than its factorization.

67965764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17747 (or 17714 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 50.

The square root of 67965764 is about 8244.1351274709. The cubic root of 67965764 is about 408.0969989161.

The spelling of 67965764 in words is "sixty-seven million, nine hundred sixty-five thousand, seven hundred sixty-four".

Divisors: 1 2 4 31 62 124 961 1922 3844 17681 35362 70724 548111 1096222 2192444 16991441 33982882 67965764