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55931640463 = 538231282277
BaseRepresentation
bin110100000101110010…
…010001101010001111
312100100222020201122101
4310011302101222033
51404021444443323
641410013055531
74020016046116
oct640562215217
9170328221571
1055931640463
11217a1a53356
12aa0b4875a7
13537492285a
1429c8426c7d
1516c54c7dad
hexd05c91a8f

55931640463 has 8 divisors (see below), whose sum is σ = 57056241888. Its totient is φ = 54809605344.

The previous prime is 55931640451. The next prime is 55931640493. The reversal of 55931640463 is 36404613955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55931640463 - 217 = 55931509391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55931640403) 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 7 ways as a sum of consecutive naturals, for example, 597520 + ... + 684757.

It is an arithmetic number, because the mean of its divisors is an integer number (7132030236).

Almost surely, 255931640463 is an apocalyptic number.

55931640463 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

55931640463 is a deficient number, since it is larger than the sum of its proper divisors (1124601425).

55931640463 is a wasteful number, since it uses less digits than its factorization.

55931640463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283153.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 55931640463 in words is "fifty-five billion, nine hundred thirty-one million, six hundred forty thousand, four hundred sixty-three".

Divisors: 1 53 823 43619 1282277 67960681 1055313971 55931640463