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54761827681 = 118641576131
BaseRepresentation
bin110011000000000011…
…110010110101100001
312020100110001002012001
4303000003302311201
51344123011441211
641053544004001
73646022566201
oct630003626541
9166313032161
1054761827681
1121251695730
12a743760601
13521946a642
142916d14401
151657951ac1
hexcc00f2d61

54761827681 has 8 divisors (see below), whose sum is σ = 59747192928. Its totient is φ = 49777632000.

The previous prime is 54761827663. The next prime is 54761827691. The reversal of 54761827681 is 18672816745.

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 54761827681 - 25 = 54761827649 is a prime.

It is a super-2 number, since 2×547618276812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54761827691) 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, 193015 + ... + 383116.

It is an arithmetic number, because the mean of its divisors is an integer number (7468399116).

Almost surely, 254761827681 is an apocalyptic number.

It is an amenable number.

54761827681 is a deficient number, since it is larger than the sum of its proper divisors (4985365247).

54761827681 is a wasteful number, since it uses less digits than its factorization.

54761827681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584783.

The product of its digits is 4515840, while the sum is 55.

The spelling of 54761827681 in words is "fifty-four billion, seven hundred sixty-one million, eight hundred twenty-seven thousand, six hundred eighty-one".

Divisors: 1 11 8641 95051 576131 6337441 4978347971 54761827681