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67790965 = 5111232563
BaseRepresentation
bin1000000101001…
…10100001110101
311201120010201111
410002212201311
5114323302330
610420555021
71452133204
oct402464165
9151503644
1067790965
11352a23a0
121a852a71
13110771c8
14900923b
155e4132a
hex40a6875

67790965 has 8 divisors (see below), whose sum is σ = 88744608. Its totient is φ = 49302480.

The previous prime is 67790963. The next prime is 67790971. The reversal of 67790965 is 56909776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67790965 - 21 = 67790963 is a prime.

It is a super-2 number, since 2×677909652 = 9191229871262450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67790963) by changing a digit.

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, 616227 + ... + 616336.

It is an arithmetic number, because the mean of its divisors is an integer number (11093076).

Almost surely, 267790965 is an apocalyptic number.

It is an amenable number.

67790965 is a deficient number, since it is larger than the sum of its proper divisors (20953643).

67790965 is a wasteful number, since it uses less digits than its factorization.

67790965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232579.

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 67790965 is about 8233.5268870636. The cubic root of 67790965 is about 407.7468413008.

The spelling of 67790965 in words is "sixty-seven million, seven hundred ninety thousand, nine hundred sixty-five".

Divisors: 1 5 11 55 1232563 6162815 13558193 67790965