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8445125 = 53135197
BaseRepresentation
bin100000001101…
…110011000101
3120220001112102
4200031303011
54130221000
6501001445
7131532233
oct40156305
916801472
108445125
114848a47
1229b3285
131998c20
14119b953
15b1c3d5
hex80dcc5

8445125 has 16 divisors (see below), whose sum is σ = 11352432. Its totient is φ = 6235200.

The previous prime is 8445109. The next prime is 8445137. The reversal of 8445125 is 5215448.

8445125 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4532641 + 3912484 = 2129^2 + 1978^2 .

It is not a de Polignac number, because 8445125 - 24 = 8445109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 974 + ... + 4223.

It is an arithmetic number, because the mean of its divisors is an integer number (709527).

Almost surely, 28445125 is an apocalyptic number.

It is an amenable number.

8445125 is a deficient number, since it is larger than the sum of its proper divisors (2907307).

8445125 is a wasteful number, since it uses less digits than its factorization.

8445125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5225 (or 5215 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 8445125 is about 2906.0497242821. The cubic root of 8445125 is about 203.6426285118.

The spelling of 8445125 in words is "eight million, four hundred forty-five thousand, one hundred twenty-five".

Divisors: 1 5 13 25 65 125 325 1625 5197 25985 67561 129925 337805 649625 1689025 8445125