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52431204 = 22375311777
BaseRepresentation
bin1100100000000…
…0100101100100
310122122210002110
43020000211210
5101410244304
65111441020
71204441440
oct310004544
9118583073
1052431204
1127661381
1215686170
13ab29ba7
146d6b820
15490a289
hex3200964

52431204 has 48 divisors (see below), whose sum is σ = 142466688. Its totient is φ = 14696448.

The previous prime is 52431187. The next prime is 52431227. The reversal of 52431204 is 40213425.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1437 + ... + 10340.

It is an arithmetic number, because the mean of its divisors is an integer number (2968056).

Almost surely, 252431204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52431204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71233344).

52431204 is an abundant number, since it is smaller than the sum of its proper divisors (90035484).

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

52431204 is a wasteful number, since it uses less digits than its factorization.

52431204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11844 (or 11842 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 52431204 is about 7240.9394418128. The cubic root of 52431204 is about 374.2799908942.

Adding to 52431204 its reverse (40213425), we get a palindrome (92644629).

The spelling of 52431204 in words is "fifty-two million, four hundred thirty-one thousand, two hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 53 84 106 159 212 318 371 636 742 1113 1484 2226 4452 11777 23554 35331 47108 70662 82439 141324 164878 247317 329756 494634 624181 989268 1248362 1872543 2496724 3745086 4369267 7490172 8738534 13107801 17477068 26215602 52431204