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687206301696 = 220362931
BaseRepresentation
bin10100000000000001011…
…00000000000000000000
32102200210120220012000000
422000000230000000000
542224344303123241
61243410452000000
7100435420120365
oct12000054000000
92380716805000
10687206301696
11245496050812
12b1228000000
134ca59a4a965
142539211c46c
1512d20d06eb6
hexa000b00000

687206301696 has 588 divisors, whose sum is σ = 2200498601280. Its totient is φ = 214035333120.

The previous prime is 687206301659. The next prime is 687206301701. The reversal of 687206301696 is 696103602786.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 22167945201 + ... + 22167945231.

It is an arithmetic number, because the mean of its divisors is an integer number (3742344560).

Almost surely, 2687206301696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 687206301696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100249300640).

687206301696 is an abundant number, since it is smaller than the sum of its proper divisors (1513292299584).

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

687206301696 is an frugal number, since it uses more digits than its factorization.

687206301696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 687206301696 in words is "six hundred eighty-seven billion, two hundred six million, three hundred one thousand, six hundred ninety-six".