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68468541902 = 2312110332297
BaseRepresentation
bin111111110001000010…
…110000100111001110
320112201200122022022022
4333301002300213032
52110210421320102
651242022250142
74642500001145
oct776102604716
9215650568268
1068468541902
1127045785a22
1211329b86952
1365c208c827
14345748475c
151baae505a2
hexff10b09ce

68468541902 has 24 divisors (see below), whose sum is σ = 106222179168. Its totient is φ = 33098878560.

The previous prime is 68468541859. The next prime is 68468541907. The reversal of 68468541902 is 20914586486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68468541907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2103818 + ... + 2136114.

It is an arithmetic number, because the mean of its divisors is an integer number (4425924132).

Almost surely, 268468541902 is an apocalyptic number.

68468541902 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

68468541902 is a deficient number, since it is larger than the sum of its proper divisors (37753637266).

68468541902 is a wasteful number, since it uses less digits than its factorization.

68468541902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33464 (or 33433 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 68468541902 in words is "sixty-eight billion, four hundred sixty-eight million, five hundred forty-one thousand, nine hundred two".

Divisors: 1 2 31 62 961 1103 1922 2206 32297 34193 64594 68386 1001207 1059983 2002414 2119966 31037417 35623591 62074834 71247182 1104331321 2208662642 34234270951 68468541902