Search a number
-
+
52208865 = 32519227269
BaseRepresentation
bin1100011100101…
…0010011100001
310122020111002200
43013022103201
5101331140430
65103003413
71202524302
oct307122341
9118214080
1052208865
112751a325
1215599569
13aa7c927
146d107a9
1548b4460
hex31ca4e1

52208865 has 48 divisors (see below), whose sum is σ = 96033600. Its totient is φ = 26165376.

The previous prime is 52208851. The next prime is 52208881. The reversal of 52208865 is 56880225.

It is not a de Polignac number, because 52208865 - 26 = 52208801 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193951 + ... + 194219.

It is an arithmetic number, because the mean of its divisors is an integer number (2000700).

Almost surely, 252208865 is an apocalyptic number.

It is an amenable number.

52208865 is a deficient number, since it is larger than the sum of its proper divisors (43824735).

52208865 is a wasteful number, since it uses less digits than its factorization.

52208865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 52208865 is about 7225.5702197128. The cubic root of 52208865 is about 373.7501858666.

The spelling of 52208865 in words is "fifty-two million, two hundred eight thousand, eight hundred sixty-five".

Divisors: 1 3 5 9 15 19 45 57 95 171 227 269 285 681 807 855 1135 1345 2043 2421 3405 4035 4313 5111 10215 12105 12939 15333 21565 25555 38817 45999 61063 64695 76665 183189 194085 229995 305315 549567 915945 1160197 2747835 3480591 5800985 10441773 17402955 52208865