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686480053 = 7216783891
BaseRepresentation
bin101000111010101…
…101101010110101
31202211201210121011
4220322231222311
52401214330203
6152041352221
723003661400
oct5072555265
91684653534
10686480053
11322555696
12171a98671
13ac2b761c
1467258d37
154040176d
hex28eadab5

686480053 has 12 divisors (see below), whose sum is σ = 803349792. Its totient is φ = 584881080.

The previous prime is 686480029. The next prime is 686480063. The reversal of 686480053 is 350084686.

It is not a de Polignac number, because 686480053 - 225 = 652925621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 686479988 and 686480015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686480023) 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 11 ways as a sum of consecutive naturals, for example, 33763 + ... + 50128.

It is an arithmetic number, because the mean of its divisors is an integer number (66945816).

Almost surely, 2686480053 is an apocalyptic number.

It is an amenable number.

686480053 is a deficient number, since it is larger than the sum of its proper divisors (116869739).

686480053 is a wasteful number, since it uses less digits than its factorization.

686480053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84072 (or 84065 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 686480053 is about 26200.7643590793. The cubic root of 686480053 is about 882.1504110662.

The spelling of 686480053 in words is "six hundred eighty-six million, four hundred eighty thousand, fifty-three".

Divisors: 1 7 49 167 1169 8183 83891 587237 4110659 14009797 98068579 686480053