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680256375 = 35313713241
BaseRepresentation
bin101000100010111…
…110001101110111
31202102000121022120
4220202332031313
52343121201000
6151300131023
722600040511
oct5042761567
91672017276
10680256375
11319a94757
1216b996a73
13aac18886
14664b8bb1
153eac26a0
hex288be377

680256375 has 32 divisors (see below), whose sum is σ = 1140295104. Its totient is φ = 360128000.

The previous prime is 680256361. The next prime is 680256391. The reversal of 680256375 is 573652086.

It is not a de Polignac number, because 680256375 - 211 = 680254327 is a prime.

It is a super-3 number, since 3×6802563753 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44755 + ... + 57995.

It is an arithmetic number, because the mean of its divisors is an integer number (35634222).

Almost surely, 2680256375 is an apocalyptic number.

680256375 is a deficient number, since it is larger than the sum of its proper divisors (460038729).

680256375 is a wasteful number, since it uses less digits than its factorization.

680256375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13396 (or 13386 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 680256375 is about 26081.7249237852. The cubic root of 680256375 is about 879.4764339976.

The spelling of 680256375 in words is "six hundred eighty million, two hundred fifty-six thousand, three hundred seventy-five".

Divisors: 1 3 5 15 25 75 125 137 375 411 685 2055 3425 10275 13241 17125 39723 51375 66205 198615 331025 993075 1655125 1814017 4965375 5442051 9070085 27210255 45350425 136051275 226752125 680256375