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8252945 = 51650589
BaseRepresentation
bin11111011110111000010001
3120112021220122
4133132320101
54103043240
6452520025
7130102031
oct37367021
916467818
108252945
114727618
122920015
13192c5cc
14114b8c1
15ad04b5
hex7dee11

8252945 has 4 divisors (see below), whose sum is σ = 9903540. Its totient is φ = 6602352.

The previous prime is 8252941. The next prime is 8252953. The reversal of 8252945 is 5492528.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5721664 + 2531281 = 2392^2 + 1591^2 .

It is a cyclic number.

It is not a de Polignac number, because 8252945 - 22 = 8252941 is a prime.

It is a super-2 number, since 2×82529452 = 136222202346050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8252941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825290 + ... + 825299.

It is an arithmetic number, because the mean of its divisors is an integer number (2475885).

Almost surely, 28252945 is an apocalyptic number.

It is an amenable number.

8252945 is a deficient number, since it is larger than the sum of its proper divisors (1650595).

8252945 is a wasteful number, since it uses less digits than its factorization.

8252945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650594.

The product of its digits is 28800, while the sum is 35.

The square root of 8252945 is about 2872.7939362231. The cubic root of 8252945 is about 202.0860415079.

The spelling of 8252945 in words is "eight million, two hundred fifty-two thousand, nine hundred forty-five".

Divisors: 1 5 1650589 8252945