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793680345 = 32517637341
BaseRepresentation
bin101111010011101…
…001100111011001
32001022110010202100
4233103221213121
53111140232340
6210431154013
725445112603
oct5723514731
92038403670
10793680345
11378014877
121a1975909
13c857c553
14775a2173
1549a29830
hex2f4e99d9

793680345 has 12 divisors (see below), whose sum is σ = 1375712676. Its totient is φ = 423296160.

The previous prime is 793680313. The next prime is 793680347. The reversal of 793680345 is 543086397.

It can be written as a sum of positive squares in 2 ways, for example, as 554885136 + 238795209 = 23556^2 + 15453^2 .

It is not a de Polignac number, because 793680345 - 25 = 793680313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 17637341 = 793680345 / (7 + 9 + 3 + 6 + 8 + 0 + 3 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 793680345.

It is not an unprimeable number, because it can be changed into a prime (793680347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8818626 + ... + 8818715.

It is an arithmetic number, because the mean of its divisors is an integer number (114642723).

Almost surely, 2793680345 is an apocalyptic number.

It is an amenable number.

793680345 is a deficient number, since it is larger than the sum of its proper divisors (582032331).

793680345 is a wasteful number, since it uses less digits than its factorization.

793680345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17637352 (or 17637349 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 793680345 is about 28172.3329704872. The cubic root of 793680345 is about 925.8668649861.

The spelling of 793680345 in words is "seven hundred ninety-three million, six hundred eighty thousand, three hundred forty-five".

Divisors: 1 3 5 9 15 45 17637341 52912023 88186705 158736069 264560115 793680345