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681032373 = 3764150593
BaseRepresentation
bin101000100101111…
…011101010110101
31202110111000210020
4220211323222311
52343321013443
6151324515353
722606452060
oct5045735265
91673430706
10681032373
1131a47477a
121700abb59
13ab12ab48
146663b8d7
153ebc7583
hex2897bab5

681032373 has 16 divisors (see below), whose sum is σ = 1039403136. Its totient is φ = 388546560.

The previous prime is 681032353. The next prime is 681032381. The reversal of 681032373 is 373230186.

It is not a de Polignac number, because 681032373 - 26 = 681032309 is a prime.

It is a super-2 number, since 2×6810323732 = 927610186148022258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681032353) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11836 + ... + 38757.

It is an arithmetic number, because the mean of its divisors is an integer number (64962696).

Almost surely, 2681032373 is an apocalyptic number.

It is an amenable number.

681032373 is a deficient number, since it is larger than the sum of its proper divisors (358370763).

681032373 is a wasteful number, since it uses less digits than its factorization.

681032373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51244.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 681032373 is about 26096.5969620562. The cubic root of 681032373 is about 879.8107259081.

The spelling of 681032373 in words is "six hundred eighty-one million, thirty-two thousand, three hundred seventy-three".

Divisors: 1 3 7 21 641 1923 4487 13461 50593 151779 354151 1062453 32430113 97290339 227010791 681032373