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68799469 is a prime number
BaseRepresentation
bin1000001100111…
…00101111101101
311210110101010111
410012130233231
5120103040334
610454340021
71463533354
oct406345755
9153411114
1068799469
1135921072
121b05a611
131133b25b
1491cc99b
156090064
hex419cbed

68799469 has 2 divisors, whose sum is σ = 68799470. Its totient is φ = 68799468.

The previous prime is 68799449. The next prime is 68799473. The reversal of 68799469 is 96499786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43428100 + 25371369 = 6590^2 + 5037^2 .

It is a cyclic number.

It is not a de Polignac number, because 68799469 - 215 = 68766701 is a prime.

It is a super-2 number, since 2×687994692 = 9466733869363922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68799449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34399734 + 34399735.

It is an arithmetic number, because the mean of its divisors is an integer number (34399735).

Almost surely, 268799469 is an apocalyptic number.

It is an amenable number.

68799469 is a deficient number, since it is larger than the sum of its proper divisors (1).

68799469 is an equidigital number, since it uses as much as digits as its factorization.

68799469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 58.

The square root of 68799469 is about 8294.5445324020. The cubic root of 68799469 is about 409.7588687221.

The spelling of 68799469 in words is "sixty-eight million, seven hundred ninety-nine thousand, four hundred sixty-nine".