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54545130131 = 232371527397
BaseRepresentation
bin110010110011001001…
…001010001010010011
312012210100021201000212
4302303021022022103
51343202023131011
641020243234335
73640451646002
oct626311121223
9165710251025
1054545130131
1121150338648
12a6a30789ab
1351b35b813b
1428d6226c39
1516438ea08b
hexcb324a293

54545130131 has 4 divisors (see below), whose sum is σ = 56916657552. Its totient is φ = 52173602712.

The previous prime is 54545130091. The next prime is 54545130187. The reversal of 54545130131 is 13103154545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54545130131 is a prime.

It is a super-2 number, since 2×545451301312 (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 (54545100131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1185763676 + ... + 1185763721.

It is an arithmetic number, because the mean of its divisors is an integer number (14229164388).

Almost surely, 254545130131 is an apocalyptic number.

54545130131 is a deficient number, since it is larger than the sum of its proper divisors (2371527421).

54545130131 is a wasteful number, since it uses less digits than its factorization.

54545130131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371527420.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 54545130131 its reverse (13103154545), we get a palindrome (67648284676).

The spelling of 54545130131 in words is "fifty-four billion, five hundred forty-five million, one hundred thirty thousand, one hundred thirty-one".

Divisors: 1 23 2371527397 54545130131