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53224900 = 2252532249
BaseRepresentation
bin1100101100001…
…0010111000100
310201011002211121
43023002113010
5102111144100
65140443324
71214255431
oct313022704
9121132747
1053224900
1128053723
12159a9544
13b047231
1470d6b88
154a1551a
hex32c25c4

53224900 has 18 divisors (see below), whose sum is σ = 115498250. Its totient is φ = 21289920.

The previous prime is 53224883. The next prime is 53224901. The reversal of 53224900 is 942235.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7851204 + 45373696 = 2802^2 + 6736^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (53224901) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 266025 + ... + 266224.

Almost surely, 253224900 is an apocalyptic number.

53224900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53224900 is an abundant number, since it is smaller than the sum of its proper divisors (62273350).

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

53224900 is a wasteful number, since it uses less digits than its factorization.

53224900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532263 (or 532256 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 53224900 is about 7295.5397332891. The cubic root of 53224900 is about 376.1591392905.

The spelling of 53224900 in words is "fifty-three million, two hundred twenty-four thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 532249 1064498 2128996 2661245 5322490 10644980 13306225 26612450 53224900