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542783990 = 257174391039
BaseRepresentation
bin100000010110100…
…011100111110110
31101211100021122202
4200112203213312
52102423041430
6125505424502
716310405420
oct4026434766
91354307582
10542783990
11259429711
1213193b132
13885b4b78
1452131810
15329b9d45
hex205a39f6

542783990 has 64 divisors (see below), whose sum is σ = 1186099200. Its totient is φ = 174583296.

The previous prime is 542783987. The next prime is 542784017. The reversal of 542783990 is 99387245.

It is a happy number.

542783990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×5427839902 = 589228919600640200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521891 + ... + 522929.

It is an arithmetic number, because the mean of its divisors is an integer number (18532800).

Almost surely, 2542783990 is an apocalyptic number.

542783990 is an abundant number, since it is smaller than the sum of its proper divisors (643315210).

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

542783990 is a wasteful number, since it uses less digits than its factorization.

542783990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 542783990 is about 23297.7249962309. The cubic root of 542783990 is about 815.7223149643.

The spelling of 542783990 in words is "five hundred forty-two million, seven hundred eighty-three thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 439 595 878 1039 1190 2078 2195 3073 4390 5195 6146 7273 7463 10390 14546 14926 15365 17663 30730 35326 36365 37315 52241 72730 74630 88315 104482 123641 176630 247282 261205 456121 522410 618205 912242 1236410 2280605 3192847 4561210 6385694 7754057 15508114 15964235 31928470 38770285 54278399 77540570 108556798 271391995 542783990