Search a number
-
+
5120725 = 52257797
BaseRepresentation
bin10011100010001011010101
3100122011022111
4103202023111
52302330400
6301431021
761345141
oct23421325
910564274
105120725
112988305
12186b471
1310a3a1c
14974221
156b23ba
hex4e22d5

5120725 has 12 divisors (see below), whose sum is σ = 6382404. Its totient is φ = 4075520.

The previous prime is 5120719. The next prime is 5120729. The reversal of 5120725 is 5270215.

It can be written as a sum of positive squares in 6 ways, for example, as 165649 + 4955076 = 407^2 + 2226^2 .

It is not a de Polignac number, because 5120725 - 27 = 5120597 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 5120696 and 5120705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6027 + ... + 6823.

It is an arithmetic number, because the mean of its divisors is an integer number (531867).

Almost surely, 25120725 is an apocalyptic number.

It is an amenable number.

5120725 is a deficient number, since it is larger than the sum of its proper divisors (1261679).

5120725 is a wasteful number, since it uses less digits than its factorization.

5120725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1059 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 5120725 is about 2262.9018980062. The cubic root of 5120725 is about 172.3629100538.

The spelling of 5120725 in words is "five million, one hundred twenty thousand, seven hundred twenty-five".

Divisors: 1 5 25 257 797 1285 3985 6425 19925 204829 1024145 5120725