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679141272880 = 24571719113149223
BaseRepresentation
bin10011110000111111111…
…10010110110100110000
32101220222112010021100001
421320133332112310300
542111340131213010
61235554310235344
7100031516400010
oct11703776266460
92356875107301
10679141272880
112420275a8244
12ab757055b54
134c072bb9965
1424c28d67c40
15129ecc63c3a
hex9e1ff96d30

679141272880 has 640 divisors, whose sum is σ = 2051868672000. Its totient is φ = 203482202112.

The previous prime is 679141272877. The next prime is 679141272977. The reversal of 679141272880 is 88272141976.

It is a super-2 number, since 2×6791412728802 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3045476449 + ... + 3045476671.

It is an arithmetic number, because the mean of its divisors is an integer number (3206044800).

Almost surely, 2679141272880 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 679141272880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025934336000).

679141272880 is an abundant number, since it is smaller than the sum of its proper divisors (1372727399120).

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

679141272880 is a wasteful number, since it uses less digits than its factorization.

679141272880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 679141272880 in words is "six hundred seventy-nine billion, one hundred forty-one million, two hundred seventy-two thousand, eight hundred eighty".