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8305025 = 52332201
BaseRepresentation
bin11111101011100110000001
3120121221100112
4133223212001
54111230100
6454001105
7130406621
oct37534601
916557315
108305025
114762763
122946195
13194a221
141162881
15ae0b35
hex7eb981

8305025 has 6 divisors (see below), whose sum is σ = 10298262. Its totient is φ = 6644000.

The previous prime is 8305021. The next prime is 8305039. The reversal of 8305025 is 5205038.

It can be written as a sum of positive squares in 3 ways, for example, as 16384 + 8288641 = 128^2 + 2879^2 .

It is not a de Polignac number, because 8305025 - 22 = 8305021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8305021) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 166076 + ... + 166125.

It is an arithmetic number, because the mean of its divisors is an integer number (1716377).

Almost surely, 28305025 is an apocalyptic number.

It is an amenable number.

8305025 is a deficient number, since it is larger than the sum of its proper divisors (1993237).

8305025 is a wasteful number, since it uses less digits than its factorization.

8305025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332211 (or 332206 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 8305025 is about 2881.8440277017. The cubic root of 8305025 is about 202.5102367431.

The spelling of 8305025 in words is "eight million, three hundred five thousand, twenty-five".

Divisors: 1 5 25 332201 1661005 8305025