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542281580 = 225234128753
BaseRepresentation
bin100000010100101…
…000111101101100
31101210101202110222
4200110220331230
52102311002310
6125450550512
716303213601
oct4024507554
91353352428
10542281580
112591161a5
12131738438
138846a299
14520406a8
153291b055
hex20528f6c

542281580 has 48 divisors (see below), whose sum is σ = 1217329344. Its totient is φ = 202414080.

The previous prime is 542281561. The next prime is 542281601. The reversal of 542281580 is 85182245.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 542281580.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4484 + ... + 33236.

It is an arithmetic number, because the mean of its divisors is an integer number (25361028).

Almost surely, 2542281580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542281580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608664672).

542281580 is an abundant number, since it is smaller than the sum of its proper divisors (675047764).

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

542281580 is a wasteful number, since it uses less digits than its factorization.

542281580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28826 (or 28824 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 542281580 is about 23286.9401167264. The cubic root of 542281580 is about 815.4705551676.

The spelling of 542281580 in words is "five hundred forty-two million, two hundred eighty-one thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 23 41 46 82 92 115 164 205 230 410 460 820 943 1886 3772 4715 9430 18860 28753 57506 115012 143765 287530 575060 661319 1178873 1322638 2357746 2645276 3306595 4715492 5894365 6613190 11788730 13226380 23577460 27114079 54228158 108456316 135570395 271140790 542281580