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539138800 = 24521638269
BaseRepresentation
bin100000001000101…
…001101011110000
31101120111002101201
4200020221223300
52101004420200
6125255340544
716234414144
oct4010515360
91346432351
10539138800
11257369a62
12130681754
1387909955
1451863224
15324e9c6a
hex20229af0

539138800 has 60 divisors (see below), whose sum is σ = 1303385080. Its totient is φ = 214306560.

The previous prime is 539138779. The next prime is 539138819. The reversal of 539138800 is 8831935.

It is a self number, because there is not a number n which added to its sum of digits gives 539138800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61066 + ... + 69334.

Almost surely, 2539138800 is an apocalyptic number.

539138800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 539138800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651692540).

539138800 is an abundant number, since it is smaller than the sum of its proper divisors (764246280).

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

539138800 is a wasteful number, since it uses less digits than its factorization.

539138800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8450 (or 8439 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 539138800 is about 23219.3626096842. The cubic root of 539138800 is about 813.8921553001.

The spelling of 539138800 in words is "five hundred thirty-nine million, one hundred thirty-eight thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 163 200 326 400 652 815 1304 1630 2608 3260 4075 6520 8150 8269 13040 16300 16538 32600 33076 41345 65200 66152 82690 132304 165380 206725 330760 413450 661520 826900 1347847 1653800 2695694 3307600 5391388 6739235 10782776 13478470 21565552 26956940 33696175 53913880 67392350 107827760 134784700 269569400 539138800