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68265499 = 193592921
BaseRepresentation
bin1000001000110…
…10011000011011
311202110020122211
410010122120123
5114433443444
610435055551
71456150531
oct404323033
9152406584
1068265499
1135596975
121aa415b7
13111b21b3
1490d0151
155ed6c34
hex411a61b

68265499 has 4 divisors (see below), whose sum is σ = 71858440. Its totient is φ = 64672560.

The previous prime is 68265493. The next prime is 68265517. The reversal of 68265499 is 99456286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68265499 - 225 = 34711067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68265493) 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 3 ways as a sum of consecutive naturals, for example, 1796442 + ... + 1796479.

It is an arithmetic number, because the mean of its divisors is an integer number (17964610).

Almost surely, 268265499 is an apocalyptic number.

68265499 is a deficient number, since it is larger than the sum of its proper divisors (3592941).

68265499 is a wasteful number, since it uses less digits than its factorization.

68265499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592940.

The product of its digits is 933120, while the sum is 49.

The square root of 68265499 is about 8262.2938098327. The cubic root of 68265499 is about 408.6960337373.

The spelling of 68265499 in words is "sixty-eight million, two hundred sixty-five thousand, four hundred ninety-nine".

Divisors: 1 19 3592921 68265499