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52442900 = 2252524429
BaseRepresentation
bin1100100000001…
…1011100010100
310122200101010122
43020003130110
5101411133100
65112011112
71204520516
oct310033424
9118611118
1052442900
112766a144
1215690a98
13ab32303
146d71bb6
15490d985
hex3203714

52442900 has 18 divisors (see below), whose sum is σ = 113801310. Its totient is φ = 20977120.

The previous prime is 52442879. The next prime is 52442911. The reversal of 52442900 is 924425.

It can be written as a sum of positive squares in 3 ways, for example, as 198916 + 52243984 = 446^2 + 7228^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52442900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 262115 + ... + 262314.

It is an arithmetic number, because the mean of its divisors is an integer number (6322295).

Almost surely, 252442900 is an apocalyptic number.

52442900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52442900 is an abundant number, since it is smaller than the sum of its proper divisors (61358410).

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

52442900 is a wasteful number, since it uses less digits than its factorization.

52442900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524443 (or 524436 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 52442900 is about 7241.7470267885. The cubic root of 52442900 is about 374.3078194453.

The spelling of 52442900 in words is "fifty-two million, four hundred forty-two thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 524429 1048858 2097716 2622145 5244290 10488580 13110725 26221450 52442900