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680873623048 = 2398298658989
BaseRepresentation
bin10011110100001110011…
…10101111111000001000
32102002110020211210000101
421322013032233320020
542123412121414143
61240442232415144
7100122453206413
oct11720716577010
92362406753011
10680873623048
112428364565a3
12abb5b2474b4
134c28aa81b28
1424d51070b7a
1512a9eda7b4d
hex9e873afe08

680873623048 has 16 divisors (see below), whose sum is σ = 1276768075500. Its totient is φ = 340402136256.

The previous prime is 680873623043. The next prime is 680873623061. The reversal of 680873623048 is 840326378086.

It can be written as a sum of positive squares in 2 ways, for example, as 642597830884 + 38275792164 = 801622^2 + 195642^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 680873623048.

It is not an unprimeable number, because it can be changed into a prime (680873623043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4250863 + ... + 4408126.

Almost surely, 2680873623048 is an apocalyptic number.

It is an amenable number.

680873623048 is a deficient number, since it is larger than the sum of its proper divisors (595894452452).

680873623048 is a wasteful number, since it uses less digits than its factorization.

680873623048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8668824 (or 8668820 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 680873623048 in words is "six hundred eighty billion, eight hundred seventy-three million, six hundred twenty-three thousand, forty-eight".

Divisors: 1 2 4 8 9829 19658 39316 78632 8658989 17317978 34635956 69271912 85109202881 170218405762 340436811524 680873623048