Search a number
-
+
68605146 = 23212730011
BaseRepresentation
bin1000001011011…
…01010011011010
311210002111120100
410011231103122
5120030331041
610450240230
71462064001
oct405552332
9153074510
1068605146
11357a9075
121ab86076
13112a097c
14917bc38
1560526b6
hex416d4da

68605146 has 24 divisors (see below), whose sum is σ = 149819904. Its totient is φ = 22687560.

The previous prime is 68605129. The next prime is 68605169. The reversal of 68605146 is 64150686.

68605146 is a `hidden beast` number, since 6 + 8 + 605 + 1 + 46 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 68605146.

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 11 ways as a sum of consecutive naturals, for example, 12720 + ... + 17291.

It is an arithmetic number, because the mean of its divisors is an integer number (6242496).

Almost surely, 268605146 is an apocalyptic number.

68605146 is an abundant number, since it is smaller than the sum of its proper divisors (81214758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68605146 is a wasteful number, since it uses less digits than its factorization.

68605146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30146 (or 30143 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 68605146 is about 8282.8223450705. The cubic root of 68605146 is about 409.3727191451.

The spelling of 68605146 in words is "sixty-eight million, six hundred five thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 127 254 381 762 1143 2286 30011 60022 90033 180066 270099 540198 3811397 7622794 11434191 22868382 34302573 68605146