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680812148 = 22832050639
BaseRepresentation
bin101000100101000…
…101111001110100
31202110001211200202
4220211011321310
52343241442043
6151320100032
722604544032
oct5045057164
91673054622
10680812148
1131a334275
12170004618
13ab081833
14665c1552
153eb821b8
hex28945e74

680812148 has 12 divisors (see below), whose sum is σ = 1205776320. Its totient is φ = 336304632.

The previous prime is 680812127. The next prime is 680812183. The reversal of 680812148 is 841218086.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024988 + ... + 1025651.

It is an arithmetic number, because the mean of its divisors is an integer number (100481360).

Almost surely, 2680812148 is an apocalyptic number.

It is an amenable number.

680812148 is a deficient number, since it is larger than the sum of its proper divisors (524964172).

680812148 is a wasteful number, since it uses less digits than its factorization.

680812148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050726 (or 2050724 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 680812148 is about 26092.3772010141. The cubic root of 680812148 is about 879.7158810747.

The spelling of 680812148 in words is "six hundred eighty million, eight hundred twelve thousand, one hundred forty-eight".

Divisors: 1 2 4 83 166 332 2050639 4101278 8202556 170203037 340406074 680812148