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68996499844 = 2237394613299
BaseRepresentation
bin100000001000010000…
…0110000100110000100
320121002111002100110011
41000100200300212010
52112301100443334
651410242240004
74661540400136
oct1002040604604
9217074070404
1068996499844
11272967a85a8
1211456956004
13667758328c
1434a7637056
151bdc48c564
hex1010830984

68996499844 has 12 divisors (see below), whose sum is σ = 120776194000. Its totient is φ = 34489015848.

The previous prime is 68996499841. The next prime is 68996499877. The reversal of 68996499844 is 44899469986.

It is not an unprimeable number, because it can be changed into a prime (68996499841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2291694 + ... + 2321605.

Almost surely, 268996499844 is an apocalyptic number.

It is an amenable number.

68996499844 is a deficient number, since it is larger than the sum of its proper divisors (51779694156).

68996499844 is a wasteful number, since it uses less digits than its factorization.

68996499844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617042 (or 4617040 counting only the distinct ones).

The product of its digits is 967458816, while the sum is 76.

The spelling of 68996499844 in words is "sixty-eight billion, nine hundred ninety-six million, four hundred ninety-nine thousand, eight hundred forty-four".

Divisors: 1 2 4 3739 7478 14956 4613299 9226598 18453196 17249124961 34498249922 68996499844