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52311400 = 2352261557
BaseRepresentation
bin1100011110001…
…1010101101000
310122102200202021
43013203111220
5101342431100
65105114224
71203432241
oct307432550
9118380667
1052311400
112758a369
1215628974
13aab74bb
146d39cc8
1548d4a1a
hex31e3568

52311400 has 24 divisors (see below), whose sum is σ = 121624470. Its totient is φ = 20924480.

The previous prime is 52311359. The next prime is 52311409. The reversal of 52311400 is 411325.

52311400 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 25623844 + 26687556 = 5062^2 + 5166^2 .

It is not an unprimeable number, because it can be changed into a prime (52311409) 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, 130579 + ... + 130978.

Almost surely, 252311400 is an apocalyptic number.

52311400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52311400 is an abundant number, since it is smaller than the sum of its proper divisors (69313070).

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

52311400 is a wasteful number, since it uses less digits than its factorization.

52311400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261573 (or 261564 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 52311400 is about 7232.6620272207. The cubic root of 52311400 is about 373.9946999926.

Adding to 52311400 its reverse (411325), we get a palindrome (52722725).

The spelling of 52311400 in words is "fifty-two million, three hundred eleven thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 261557 523114 1046228 1307785 2092456 2615570 5231140 6538925 10462280 13077850 26155700 52311400