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68019795 = 3259715583
BaseRepresentation
bin1000000110111…
…10011001010011
311201222202121200
410003132121103
5114403113140
610425522243
71454105304
oct403363123
9151882550
1068019795
1135439308
121a943383
13111273cc
1490687ab
155e89030
hex40de653

68019795 has 24 divisors (see below), whose sum is σ = 119124096. Its totient is φ = 35900928.

The previous prime is 68019781. The next prime is 68019823. The reversal of 68019795 is 59791086.

It is not a de Polignac number, because 68019795 - 215 = 67987027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 68019795.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3427 + ... + 12156.

It is an arithmetic number, because the mean of its divisors is an integer number (4963504).

Almost surely, 268019795 is an apocalyptic number.

68019795 is a deficient number, since it is larger than the sum of its proper divisors (51104301).

68019795 is a wasteful number, since it uses less digits than its factorization.

68019795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15691 (or 15688 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 68019795 is about 8247.4114120735. The cubic root of 68019795 is about 408.2051124094.

The spelling of 68019795 in words is "sixty-eight million, nineteen thousand, seven hundred ninety-five".

Divisors: 1 3 5 9 15 45 97 291 485 873 1455 4365 15583 46749 77915 140247 233745 701235 1511551 4534653 7557755 13603959 22673265 68019795