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542532520 = 23523475779
BaseRepresentation
bin100000010101100…
…110001110101000
31101210212111201001
4200111212032220
52102342020040
6125500204344
716305310315
oct4025461650
91353774631
10542532520
11259277792
121318396b4
138852757a
14520a7d0c
153296a59a
hex205663a8

542532520 has 32 divisors (see below), whose sum is σ = 1221429600. Its totient is φ = 216883008.

The previous prime is 542532511. The next prime is 542532521. The reversal of 542532520 is 25235245.

It is not an unprimeable number, because it can be changed into a prime (542532521) 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, 90991 + ... + 96769.

It is an arithmetic number, because the mean of its divisors is an integer number (38169675).

Almost surely, 2542532520 is an apocalyptic number.

It is an amenable number.

542532520 is an abundant number, since it is smaller than the sum of its proper divisors (678897080).

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

542532520 is a wasteful number, since it uses less digits than its factorization.

542532520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8137 (or 8133 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 542532520 is about 23292.3274921164. The cubic root of 542532520 is about 815.5963217017.

Adding to 542532520 its reverse (25235245), we get a palindrome (567767765).

The spelling of 542532520 in words is "five hundred forty-two million, five hundred thirty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 2347 4694 5779 9388 11558 11735 18776 23116 23470 28895 46232 46940 57790 93880 115580 231160 13563313 27126626 54253252 67816565 108506504 135633130 271266260 542532520