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680497474 = 21911781407
BaseRepresentation
bin101000100011111…
…001000101000010
31202102110212001011
4220203321011002
52343201404344
6151305231134
722602063436
oct5043710502
91672425034
10680497474
1131a139908
1216ba924aa
13aaca1537
146653c9c6
153eb1dd34
hex288f9142

680497474 has 8 divisors (see below), whose sum is σ = 1026091008. Its totient is φ = 338467140.

The previous prime is 680497469. The next prime is 680497487. The reversal of 680497474 is 474794086.

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

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, 890322 + ... + 891085.

It is an arithmetic number, because the mean of its divisors is an integer number (128261376).

Almost surely, 2680497474 is an apocalyptic number.

680497474 is a deficient number, since it is larger than the sum of its proper divisors (345593534).

680497474 is a wasteful number, since it uses less digits than its factorization.

680497474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781600.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The square root of 680497474 is about 26086.3465054039. The cubic root of 680497474 is about 879.5803241634.

The spelling of 680497474 in words is "six hundred eighty million, four hundred ninety-seven thousand, four hundred seventy-four".

Divisors: 1 2 191 382 1781407 3562814 340248737 680497474