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68082501 = 3177318287
BaseRepresentation
bin1000000111011…
…01101101000101
311202002221122010
410003231231011
5114412120001
610431124433
71454456154
oct403555505
9152087563
1068082501
1135481433
121a973719
1311149b06
14908359b
155e9c8d6
hex40edb45

68082501 has 16 divisors (see below), whose sum is σ = 97438464. Its totient is φ = 42130944.

The previous prime is 68082481. The next prime is 68082503. The reversal of 68082501 is 10528086.

It is not a de Polignac number, because 68082501 - 29 = 68081989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68082503) 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, 5421 + ... + 12866.

It is an arithmetic number, because the mean of its divisors is an integer number (6089904).

Almost surely, 268082501 is an apocalyptic number.

It is an amenable number.

68082501 is a deficient number, since it is larger than the sum of its proper divisors (29355963).

68082501 is a wasteful number, since it uses less digits than its factorization.

68082501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18380.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 68082501 is about 8251.2120927776. The cubic root of 68082501 is about 408.3305124151.

The spelling of 68082501 in words is "sixty-eight million, eighty-two thousand, five hundred one".

Divisors: 1 3 17 51 73 219 1241 3723 18287 54861 310879 932637 1334951 4004853 22694167 68082501