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68269497 = 3238911117
BaseRepresentation
bin1000001000110…
…11010110111001
311202110110010220
410010123112321
5114434110442
610435130253
71456165302
oct404332671
9152413126
1068269497
113559997a
121aa43989
13111b3c6a
1490d17a9
155ed7eec
hex411b5b9

68269497 has 16 divisors (see below), whose sum is σ = 96059520. Its totient is φ = 43041152.

The previous prime is 68269493. The next prime is 68269511. The reversal of 68269497 is 79496286.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68269497 - 22 = 68269493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68269493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 583 + ... + 11699.

It is an arithmetic number, because the mean of its divisors is an integer number (6003720).

Almost surely, 268269497 is an apocalyptic number.

It is an amenable number.

68269497 is a deficient number, since it is larger than the sum of its proper divisors (27790023).

68269497 is a wasteful number, since it uses less digits than its factorization.

68269497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11232.

The product of its digits is 1306368, while the sum is 51.

The square root of 68269497 is about 8262.5357487880. The cubic root of 68269497 is about 408.7040120712.

The spelling of 68269497 in words is "sixty-eight million, two hundred sixty-nine thousand, four hundred ninety-seven".

Divisors: 1 3 23 69 89 267 2047 6141 11117 33351 255691 767073 989413 2968239 22756499 68269497