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68798888 = 2323794733
BaseRepresentation
bin1000001100111…
…00100110101000
311210110100022222
410012130212220
5120103031023
610454333212
71463531564
oct406344650
9153410288
1068798888
1135920694
121b05a208
131133ac02
1491cc6a4
15608ecc8
hex419c9a8

68798888 has 32 divisors (see below), whose sum is σ = 136339200. Its totient is φ = 32480448.

The previous prime is 68798879. The next prime is 68798893. The reversal of 68798888 is 88889786.

It is a self number, because there is not a number n which added to its sum of digits gives 68798888.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12170 + ... + 16902.

It is an arithmetic number, because the mean of its divisors is an integer number (4260600).

Almost surely, 268798888 is an apocalyptic number.

It is an amenable number.

68798888 is a deficient number, since it is larger than the sum of its proper divisors (67540312).

68798888 is a wasteful number, since it uses less digits than its factorization.

68798888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4841 (or 4837 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 62.

The square root of 68798888 is about 8294.5095093079. The cubic root of 68798888 is about 409.7577152705.

The spelling of 68798888 in words is "sixty-eight million, seven hundred ninety-eight thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 23 46 79 92 158 184 316 632 1817 3634 4733 7268 9466 14536 18932 37864 108859 217718 373907 435436 747814 870872 1495628 2991256 8599861 17199722 34399444 68798888