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542869930 = 25413373929
BaseRepresentation
bin100000010110111…
…000100110101010
31101211111122112201
4200112320212222
52102433314210
6125511330414
716311214111
oct4026704652
91354448481
10542869930
11259488239
12131980a0a
1388615015
1452154c78
15329d553a
hex205b89aa

542869930 has 32 divisors (see below), whose sum is σ = 1004225040. Its totient is φ = 211169280.

The previous prime is 542869907. The next prime is 542869939. The reversal of 542869930 is 39968245.

It can be written as a sum of positive squares in 8 ways, for example, as 6901129 + 535968801 = 2627^2 + 23151^2 .

It is not an unprimeable number, because it can be changed into a prime (542869939) 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 15 ways as a sum of consecutive naturals, for example, 136206 + ... + 140134.

Almost surely, 2542869930 is an apocalyptic number.

542869930 is a deficient number, since it is larger than the sum of its proper divisors (461355110).

542869930 is a wasteful number, since it uses less digits than its factorization.

542869930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 542869930 is about 23299.5693093242. The cubic root of 542869930 is about 815.7653643035.

The spelling of 542869930 in words is "five hundred forty-two million, eight hundred sixty-nine thousand, nine hundred thirty".

Divisors: 1 2 5 10 41 82 205 337 410 674 1685 3370 3929 7858 13817 19645 27634 39290 69085 138170 161089 322178 805445 1324073 1610890 2648146 6620365 13240730 54286993 108573986 271434965 542869930