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55931584943 = 1323187062157
BaseRepresentation
bin110100000101110010…
…000100000110101111
312100100222010220111002
4310011302010012233
51404021441204233
641410011550515
74020015425213
oct640562040657
9170328126432
1055931584943
11217a1a15673
12aa0b45b43b
1353749034c0
1429c8410943
1516c54b66e8
hexd05c841af

55931584943 has 8 divisors (see below), whose sum is σ = 62852885088. Its totient is φ = 49384409184.

The previous prime is 55931584937. The next prime is 55931584949. The reversal of 55931584943 is 34948513955.

It is an interprime number because it is at equal distance from previous prime (55931584937) and next prime (55931584949).

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 55931584943 - 26 = 55931584879 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 (55931584949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93530780 + ... + 93531377.

It is an arithmetic number, because the mean of its divisors is an integer number (7856610636).

Almost surely, 255931584943 is an apocalyptic number.

55931584943 is a deficient number, since it is larger than the sum of its proper divisors (6921300145).

55931584943 is a wasteful number, since it uses less digits than its factorization.

55931584943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187062193.

The product of its digits is 11664000, while the sum is 56.

The spelling of 55931584943 in words is "fifty-five billion, nine hundred thirty-one million, five hundred eighty-four thousand, nine hundred forty-three".

Divisors: 1 13 23 299 187062157 2431808041 4302429611 55931584943