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683680254 = 23174165449
BaseRepresentation
bin101000110000000…
…010000111111110
31202122110112222220
4220300002013332
52400010232004
6151501350210
722641120615
oct5060020776
91678415886
10683680254
11320a13104
12170b68366
13ab84713a
1466b2a87c
154004bdd9
hex28c021fe

683680254 has 16 divisors (see below), whose sum is σ = 1368166800. Its totient is φ = 227759040.

The previous prime is 683680247. The next prime is 683680271. The reversal of 683680254 is 452086386.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22279 + ... + 43170.

It is an arithmetic number, because the mean of its divisors is an integer number (85510425).

Almost surely, 2683680254 is an apocalyptic number.

683680254 is an abundant number, since it is smaller than the sum of its proper divisors (684486546).

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

683680254 is a wasteful number, since it uses less digits than its factorization.

683680254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67195.

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 683680254 is about 26147.2800497490. The cubic root of 683680254 is about 880.9494977027.

The spelling of 683680254 in words is "six hundred eighty-three million, six hundred eighty thousand, two hundred fifty-four".

Divisors: 1 2 3 6 1741 3482 5223 10446 65449 130898 196347 392694 113946709 227893418 341840127 683680254