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83308025 = 523332321
BaseRepresentation
bin1001111011100…
…10110111111001
312210202111010102
410331302313321
5132311324100
612133325145
72031051353
oct475626771
9183674112
1083308025
1143030609
1223a967b5
131434acb8
14b0c80d3
1574a8cd5
hex4f72df9

83308025 has 6 divisors (see below), whose sum is σ = 103301982. Its totient is φ = 66646400.

The previous prime is 83308021. The next prime is 83308031. The reversal of 83308025 is 52080338.

It can be written as a sum of positive squares in 3 ways, for example, as 9554281 + 73753744 = 3091^2 + 8588^2 .

It is not a de Polignac number, because 83308025 - 22 = 83308021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83308021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1666136 + ... + 1666185.

It is an arithmetic number, because the mean of its divisors is an integer number (17216997).

Almost surely, 283308025 is an apocalyptic number.

It is an amenable number.

83308025 is a deficient number, since it is larger than the sum of its proper divisors (19993957).

83308025 is a wasteful number, since it uses less digits than its factorization.

83308025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332331 (or 3332326 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 83308025 is about 9127.3229919840. The cubic root of 83308025 is about 436.7460101599.

It can be divided in two parts, 8 and 3308025, that added together give a palindrome (3308033).

The spelling of 83308025 in words is "eighty-three million, three hundred eight thousand, twenty-five".

Divisors: 1 5 25 3332321 16661605 83308025