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542027525 = 52131667777
BaseRepresentation
bin100000010011101…
…010111100000101
31101202220211222112
4200103222330011
52102224340100
6125441310405
716301105114
oct4023527405
91352824875
10542027525
11258a62336
12131635405
13883ab760
1451db5c7b
15328bab35
hex204eaf05

542027525 has 12 divisors (see below), whose sum is σ = 723815652. Its totient is φ = 400266240.

The previous prime is 542027477. The next prime is 542027527. The reversal of 542027525 is 525720245.

It can be written as a sum of positive squares in 6 ways, for example, as 5317636 + 536709889 = 2306^2 + 23167^2 .

It is a de Polignac number, because none of the positive numbers 2k-542027525 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542027491 and 542027500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542027527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 833564 + ... + 834213.

It is an arithmetic number, because the mean of its divisors is an integer number (60317971).

Almost surely, 2542027525 is an apocalyptic number.

It is an amenable number.

542027525 is a deficient number, since it is larger than the sum of its proper divisors (181788127).

542027525 is a wasteful number, since it uses less digits than its factorization.

542027525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667800 (or 1667795 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 542027525 is about 23281.4845961335. The cubic root of 542027525 is about 815.3431879220.

The spelling of 542027525 in words is "five hundred forty-two million, twenty-seven thousand, five hundred twenty-five".

Divisors: 1 5 13 25 65 325 1667777 8338885 21681101 41694425 108405505 542027525