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68002799 = 383177553
BaseRepresentation
bin1000000110110…
…10001111101111
311201221220022012
410003122033233
5114402042144
610425311435
71454004614
oct403321757
9151856265
1068002799
1135427567
121a93557b
131111c757
14906250b
155e83e9e
hex40da3ef

68002799 has 4 divisors (see below), whose sum is σ = 68180736. Its totient is φ = 67824864.

The previous prime is 68002777. The next prime is 68002829. The reversal of 68002799 is 99720086.

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 68002799 - 224 = 51225583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68002769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88394 + ... + 89159.

It is an arithmetic number, because the mean of its divisors is an integer number (17045184).

Almost surely, 268002799 is an apocalyptic number.

68002799 is a deficient number, since it is larger than the sum of its proper divisors (177937).

68002799 is a wasteful number, since it uses less digits than its factorization.

68002799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177936.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 68002799 is about 8246.3809637925. The cubic root of 68002799 is about 408.1711103858.

The spelling of 68002799 in words is "sixty-eight million, two thousand, seven hundred ninety-nine".

Divisors: 1 383 177553 68002799