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68041478802 = 23111030931497
BaseRepresentation
bin111111010111100101…
…101001001010010010
320111121221001020212110
4333113211221022102
52103322104310202
651131405010150
74626063012213
oct772745511222
9214557036773
1068041478802
1126946706110
121122ab53956
136554763c7b
14341687740a
151b836e326c
hexfd7969292

68041478802 has 16 divisors (see below), whose sum is σ = 148454135712. Its totient is φ = 20618629920.

The previous prime is 68041478789. The next prime is 68041478809. The reversal of 68041478802 is 20887414086.

It is not an unprimeable number, because it can be changed into a prime (68041478809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515465683 + ... + 515465814.

It is an arithmetic number, because the mean of its divisors is an integer number (9278383482).

Almost surely, 268041478802 is an apocalyptic number.

68041478802 is an abundant number, since it is smaller than the sum of its proper divisors (80412656910).

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

68041478802 is a wasteful number, since it uses less digits than its factorization.

68041478802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030931513.

The product of its (nonzero) digits is 688128, while the sum is 48.

The spelling of 68041478802 in words is "sixty-eight billion, forty-one million, four hundred seventy-eight thousand, eight hundred two".

Divisors: 1 2 3 6 11 22 33 66 1030931497 2061862994 3092794491 6185588982 11340246467 22680492934 34020739401 68041478802