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9272225 = 521721817
BaseRepresentation
bin100011010111…
…101110100001
3122110002002202
4203113232201
54333202400
6530422545
7141545504
oct43275641
918402082
109272225
1152633a6
123131a55
131bc8531
14133513b
15c324d5
hex8d7ba1

9272225 has 12 divisors (see below), whose sum is σ = 12174444. Its totient is φ = 6981120.

The previous prime is 9272213. The next prime is 9272231. The reversal of 9272225 is 5222729.

It can be written as a sum of positive squares in 6 ways, for example, as 85264 + 9186961 = 292^2 + 3031^2 .

It is not a de Polignac number, because 9272225 - 218 = 9010081 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 94 + 210 + 77 + 212 + 215 + 223 + 56 .

It is a Duffinian number.

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 10484 + ... + 11333.

It is an arithmetic number, because the mean of its divisors is an integer number (1014537).

Almost surely, 29272225 is an apocalyptic number.

It is an amenable number.

9272225 is a deficient number, since it is larger than the sum of its proper divisors (2902219).

9272225 is a wasteful number, since it uses less digits than its factorization.

9272225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21844 (or 21839 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 9272225 is about 3045.0328405454. The cubic root of 9272225 is about 210.0848107928.

The spelling of 9272225 in words is "nine million, two hundred seventy-two thousand, two hundred twenty-five".

Divisors: 1 5 17 25 85 425 21817 109085 370889 545425 1854445 9272225