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680046757488 = 24337535477757
BaseRepresentation
bin10011110010101011111…
…00100000011001110000
32102000022121221122201000
421321111330200121300
542120213432214423
61240224214042000
7100063123030560
oct11712574403160
92360277848630
10680046757488
1124245173622a
12ab96a349300
134c188683877
1424cb3310da0
1512a524c5843
hex9e55f20670

680046757488 has 320 divisors, whose sum is σ = 2277381381120. Its totient is φ = 190260016128.

The previous prime is 680046757433. The next prime is 680046757519. The reversal of 680046757488 is 884757640086.

680046757488 is a `hidden beast` number, since 6 + 80 + 0 + 4 + 6 + 75 + 7 + 488 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 87664906 + ... + 87672662.

It is an arithmetic number, because the mean of its divisors is an integer number (7116816816).

Almost surely, 2680046757488 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 680046757488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138690690560).

680046757488 is an abundant number, since it is smaller than the sum of its proper divisors (1597334623632).

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

680046757488 is a wasteful number, since it uses less digits than its factorization.

680046757488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8381 (or 8369 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 63.

The spelling of 680046757488 in words is "six hundred eighty billion, forty-six million, seven hundred fifty-seven thousand, four hundred eighty-eight".