Search a number
-
+
52872505 = 571510643
BaseRepresentation
bin1100100110110…
…0010100111001
310200111012102221
43021230110321
5102013410010
65125124041
71211260150
oct311542471
9120435387
1052872505
1127932994
1215859621
13ac52a0a
147044597
154995dda
hex326c539

52872505 has 8 divisors (see below), whose sum is σ = 72510912. Its totient is φ = 36255408.

The previous prime is 52872487. The next prime is 52872511. The reversal of 52872505 is 50527825.

52872505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52872505 - 223 = 44483897 is a prime.

It is a Duffinian number.

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, 755287 + ... + 755356.

It is an arithmetic number, because the mean of its divisors is an integer number (9063864).

Almost surely, 252872505 is an apocalyptic number.

It is an amenable number.

52872505 is a deficient number, since it is larger than the sum of its proper divisors (19638407).

52872505 is a wasteful number, since it uses less digits than its factorization.

52872505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510655.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 52872505 is about 7271.3482243666. The cubic root of 52872505 is about 375.3271337989.

The spelling of 52872505 in words is "fifty-two million, eight hundred seventy-two thousand, five hundred five".

Divisors: 1 5 7 35 1510643 7553215 10574501 52872505