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680371433 = 71722432549
BaseRepresentation
bin101000100011011…
…010010011101001
31202102020110010222
4220203122103221
52343133341213
6151302415425
722601030120
oct5043322351
91672213128
10680371433
1131a063145
1216ba31575
13aac59061
1466508ab7
153eae6808
hex288da4e9

680371433 has 16 divisors (see below), whose sum is σ = 823996800. Its totient is φ = 548411136.

The previous prime is 680371403. The next prime is 680371457. The reversal of 680371433 is 334173086.

It is a happy number.

It is not a de Polignac number, because 680371433 - 28 = 680371177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680371393 and 680371402.

It is not an unprimeable number, because it can be changed into a prime (680371403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265643 + ... + 268191.

It is an arithmetic number, because the mean of its divisors is an integer number (51499800).

Almost surely, 2680371433 is an apocalyptic number.

It is an amenable number.

680371433 is a deficient number, since it is larger than the sum of its proper divisors (143625367).

680371433 is a wasteful number, since it uses less digits than its factorization.

680371433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4816.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 680371433 is about 26083.9305512034. The cubic root of 680371433 is about 879.5260158409.

The spelling of 680371433 in words is "six hundred eighty million, three hundred seventy-one thousand, four hundred thirty-three".

Divisors: 1 7 17 119 2243 2549 15701 17843 38131 43333 266917 303331 5717407 40021849 97195919 680371433