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54531103240 = 2351363277581
BaseRepresentation
bin110010110010010011…
…101001101000001000
312012202100220001202101
4302302103221220020
51343134430300430
641015022443144
73640221505165
oct626223515010
9165670801671
1054531103240
1121143427a79
12a69a4334b4
1351b07166c3
1428d441506c
151642578dca
hexcb24e9a08

54531103240 has 16 divisors (see below), whose sum is σ = 122694982380. Its totient is φ = 21812441280.

The previous prime is 54531103229. The next prime is 54531103243. The reversal of 54531103240 is 4230113545.

It can be written as a sum of positive squares in 2 ways, for example, as 53554290724 + 976812516 = 231418^2 + 31254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 54531103199 and 54531103208.

It is not an unprimeable number, because it can be changed into a prime (54531103243) 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, 681638751 + ... + 681638830.

Almost surely, 254531103240 is an apocalyptic number.

It is an amenable number.

54531103240 is an abundant number, since it is smaller than the sum of its proper divisors (68163879140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54531103240 is a wasteful number, since it uses less digits than its factorization.

54531103240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363277592 (or 1363277588 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 54531103240 its reverse (4230113545), we get a palindrome (58761216785).

The spelling of 54531103240 in words is "fifty-four billion, five hundred thirty-one million, one hundred three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1363277581 2726555162 5453110324 6816387905 10906220648 13632775810 27265551620 54531103240