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544142525 = 52104920749
BaseRepresentation
bin100000011011101…
…111010010111101
31101220220022012212
4200123233102331
52103300030100
6125554510205
716325064233
oct4033572275
91356808185
10544142525
1125a177373
12132295365
138896c334
14523a6953
1532b87635
hex206ef4bd

544142525 has 12 divisors (see below), whose sum is σ = 675412500. Its totient is φ = 434878080.

The previous prime is 544142519. The next prime is 544142527. The reversal of 544142525 is 525241445.

It can be written as a sum of positive squares in 6 ways, for example, as 24393721 + 519748804 = 4939^2 + 22798^2 .

It is not a de Polignac number, because 544142525 - 210 = 544141501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 544142491 and 544142500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544142527) 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 11 ways as a sum of consecutive naturals, for example, 15851 + ... + 36599.

It is an arithmetic number, because the mean of its divisors is an integer number (56284375).

Almost surely, 2544142525 is an apocalyptic number.

It is an amenable number.

544142525 is a deficient number, since it is larger than the sum of its proper divisors (131269975).

544142525 is a wasteful number, since it uses less digits than its factorization.

544142525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21808 (or 21803 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 544142525 is about 23326.8627337668. The cubic root of 544142525 is about 816.4023055669.

The spelling of 544142525 in words is "five hundred forty-four million, one hundred forty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 1049 5245 20749 26225 103745 518725 21765701 108828505 544142525