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542899380 = 223514960727
BaseRepresentation
bin100000010110111…
…111110010110100
31101211120010221110
4200112333302310
52102440240010
6125512115020
716311366012
oct4026776264
91354503843
10542899380
112594a8381
12131995a70
138862554a
14521618b2
15329de120
hex205bfcb4

542899380 has 48 divisors (see below), whose sum is σ = 1530345600. Its totient is φ = 143799168.

The previous prime is 542899367. The next prime is 542899387. The reversal of 542899380 is 83998245.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542899387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21424 + ... + 39303.

It is an arithmetic number, because the mean of its divisors is an integer number (31882200).

Almost surely, 2542899380 is an apocalyptic number.

It is an amenable number.

542899380 is an abundant number, since it is smaller than the sum of its proper divisors (987446220).

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

542899380 is a wasteful number, since it uses less digits than its factorization.

542899380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60888 (or 60886 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 542899380 is about 23300.2012866842. The cubic root of 542899380 is about 815.7801154463.

The spelling of 542899380 in words is "five hundred forty-two million, eight hundred ninety-nine thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 149 298 447 596 745 894 1490 1788 2235 2980 4470 8940 60727 121454 182181 242908 303635 364362 607270 728724 910905 1214540 1821810 3643620 9048323 18096646 27144969 36193292 45241615 54289938 90483230 108579876 135724845 180966460 271449690 542899380