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680690102 = 21791901369
BaseRepresentation
bin101000100100101…
…000000110110110
31202102211122021112
4220210220012312
52343224040402
6151313315022
722603525151
oct5044500666
91672748245
10680690102
1131a260604
1216bb65a72
13ab03b111
146658cc98
153eb5ae52
hex289281b6

680690102 has 8 divisors (see below), whose sum is σ = 1026739800. Its totient is φ = 338443504.

The previous prime is 680690069. The next prime is 680690123. The reversal of 680690102 is 201096086.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 950327 + ... + 951042.

It is an arithmetic number, because the mean of its divisors is an integer number (128342475).

Almost surely, 2680690102 is an apocalyptic number.

680690102 is a deficient number, since it is larger than the sum of its proper divisors (346049698).

680690102 is a wasteful number, since it uses less digits than its factorization.

680690102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901550.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 680690102 is about 26090.0383671623. The cubic root of 680690102 is about 879.6633104202.

The spelling of 680690102 in words is "six hundred eighty million, six hundred ninety thousand, one hundred two".

Divisors: 1 2 179 358 1901369 3802738 340345051 680690102