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52002880 = 2651011609
BaseRepresentation
bin1100011001100…
…0000001000000
310121212000112121
43012120001000
5101303043010
65054334024
71201005616
oct306300100
9117760477
1052002880
1127399596
12154ba314
13aa09c47
146c996b6
1548733da
hex3198040

52002880 has 56 divisors (see below), whose sum is σ = 125135640. Its totient is φ = 20582400.

The previous prime is 52002877. The next prime is 52002889. The reversal of 52002880 is 8820025.

It can be written as a sum of positive squares in 4 ways, for example, as 33547264 + 18455616 = 5792^2 + 4296^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (52002889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31516 + ... + 33124.

It is an arithmetic number, because the mean of its divisors is an integer number (2234565).

Almost surely, 252002880 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 52002880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62567820).

52002880 is an abundant number, since it is smaller than the sum of its proper divisors (73132760).

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

52002880 is a wasteful number, since it uses less digits than its factorization.

52002880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 52002880 is about 7211.3022402337. The cubic root of 52002880 is about 373.2580063443.

The spelling of 52002880 in words is "fifty-two million, two thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 101 160 202 320 404 505 808 1010 1609 1616 2020 3218 3232 4040 6436 6464 8045 8080 12872 16090 16160 25744 32180 32320 51488 64360 102976 128720 162509 257440 325018 514880 650036 812545 1300072 1625090 2600144 3250180 5200288 6500360 10400576 13000720 26001440 52002880