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680446347548 = 221124164168837
BaseRepresentation
bin10011110011011011100…
…00110100100100011100
32102001100110211221012212
421321231300310210130
542122023231110143
61240332010415552
7100106044344302
oct11715560644434
92361313757185
10680446347548
11242637251150
12aba601315b8
134c2203b06a6
1424d1040a272
1512a77607918
hex9e6dc3491c

680446347548 has 24 divisors (see below), whose sum is σ = 1304424138864. Its totient is φ = 308010412800.

The previous prime is 680446347547. The next prime is 680446347569. The reversal of 680446347548 is 845743644086.

680446347548 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×6804463475482 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680446347541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32073815 + ... + 32095022.

It is an arithmetic number, because the mean of its divisors is an integer number (54351005786).

Almost surely, 2680446347548 is an apocalyptic number.

It is an amenable number.

680446347548 is a deficient number, since it is larger than the sum of its proper divisors (623977791316).

680446347548 is a wasteful number, since it uses less digits than its factorization.

680446347548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64169093 (or 64169091 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 59.

The spelling of 680446347548 in words is "six hundred eighty billion, four hundred forty-six million, three hundred forty-seven thousand, five hundred forty-eight".

Divisors: 1 2 4 11 22 44 241 482 964 2651 5302 10604 64168837 128337674 256675348 705857207 1411714414 2823428828 15464689717 30929379434 61858758868 170111586887 340223173774 680446347548