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680847498 = 23312608287
BaseRepresentation
bin101000100101001…
…110100010001010
31202110010122012000
4220211032202022
52343244104443
6151320531430
722605052062
oct5045164212
91673118160
10680847498
1131a358891
12170020b76
13ab094956
14665d03a2
153eb8c8d3
hex2894e88a

680847498 has 16 divisors (see below), whose sum is σ = 1512994560. Its totient is φ = 226949148.

The previous prime is 680847439. The next prime is 680847511. The reversal of 680847498 is 894748086.

680847498 is a `hidden beast` number, since 6 + 80 + 8 + 474 + 98 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 12608287 = 680847498 / (6 + 8 + 0 + 8 + 4 + 7 + 4 + 9 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6304090 + ... + 6304197.

It is an arithmetic number, because the mean of its divisors is an integer number (94562160).

Almost surely, 2680847498 is an apocalyptic number.

680847498 is an abundant number, since it is smaller than the sum of its proper divisors (832147062).

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

680847498 is a wasteful number, since it uses less digits than its factorization.

680847498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12608298 (or 12608292 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The square root of 680847498 is about 26093.0545931288. The cubic root of 680847498 is about 879.7311067226.

The spelling of 680847498 in words is "six hundred eighty million, eight hundred forty-seven thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 9 18 27 54 12608287 25216574 37824861 75649722 113474583 226949166 340423749 680847498