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52405300 = 2252524053
BaseRepresentation
bin1100011111101…
…0010000110100
310122121110120001
43013322100310
5101403432200
65111121044
71204303063
oct307722064
9118543501
1052405300
1127643972
1215673184
13ab1b16c
146d621da
15490276a
hex31fa434

52405300 has 18 divisors (see below), whose sum is σ = 113719718. Its totient is φ = 20962080.

The previous prime is 52405289. The next prime is 52405307. The reversal of 52405300 is 350425.

It is a happy number.

52405300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 478864 + 51926436 = 692^2 + 7206^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52405307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 261927 + ... + 262126.

Almost surely, 252405300 is an apocalyptic number.

52405300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52405300 is an abundant number, since it is smaller than the sum of its proper divisors (61314418).

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

52405300 is a wasteful number, since it uses less digits than its factorization.

52405300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524067 (or 524060 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 52405300 is about 7239.1505026488. The cubic root of 52405300 is about 374.2183421986.

Adding to 52405300 its reverse (350425), we get a palindrome (52755725).

The spelling of 52405300 in words is "fifty-two million, four hundred five thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 524053 1048106 2096212 2620265 5240530 10481060 13101325 26202650 52405300