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52204520 = 23510312671
BaseRepresentation
bin1100011100100…
…1001111101000
310122020021010202
43013021033220
5101331021040
65102531332
71202505524
oct307111750
9118207122
1052204520
1127517035
1215596b48
13aa7a964
146d0cd84
1548b3015
hex31c93e8

52204520 has 32 divisors (see below), whose sum is σ = 118609920. Its totient is φ = 20677440.

The previous prime is 52204513. The next prime is 52204547. The reversal of 52204520 is 2540225.

52204520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 52204492 and 52204501.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2216 + ... + 10455.

It is an arithmetic number, because the mean of its divisors is an integer number (3706560).

Almost surely, 252204520 is an apocalyptic number.

It is an amenable number.

52204520 is an abundant number, since it is smaller than the sum of its proper divisors (66405400).

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

52204520 is a wasteful number, since it uses less digits than its factorization.

52204520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12785 (or 12781 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 52204520 is about 7225.2695451450. The cubic root of 52204520 is about 373.7398173234.

Adding to 52204520 its reverse (2540225), we get a palindrome (54744745).

The spelling of 52204520 in words is "fifty-two million, two hundred four thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 103 206 412 515 824 1030 2060 4120 12671 25342 50684 63355 101368 126710 253420 506840 1305113 2610226 5220452 6525565 10440904 13051130 26102260 52204520