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680673480680 = 23523739862479
BaseRepresentation
bin10011110011110110100…
…11010000111111101000
32102001221022020111022002
421321323103100333220
542123004402340210
61240410322550132
7100114503060104
oct11717323207750
92361838214262
10680673480680
11242743486686
12abb04208348
134c258477aab
1424d32652904
1512a8c5214a5
hex9e7b4d0fe8

680673480680 has 32 divisors (see below), whose sum is σ = 1598102956800. Its totient is φ = 260431592256.

The previous prime is 680673480671. The next prime is 680673480791. The reversal of 680673480680 is 86084376086.

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 7 ways as a sum of consecutive naturals, for example, 369930320 + ... + 369932159.

It is an arithmetic number, because the mean of its divisors is an integer number (49940717400).

Almost surely, 2680673480680 is an apocalyptic number.

It is an amenable number.

680673480680 is an abundant number, since it is smaller than the sum of its proper divisors (917429476120).

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

680673480680 is a wasteful number, since it uses less digits than its factorization.

680673480680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739862513 (or 739862509 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 56.

The spelling of 680673480680 in words is "six hundred eighty billion, six hundred seventy-three million, four hundred eighty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 739862479 1479724958 2959449916 3699312395 5918899832 7398624790 14797249580 17016837017 29594499160 34033674034 68067348068 85084185085 136134696136 170168370170 340336740340 680673480680