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3979025 = 52159161
BaseRepresentation
bin1111001011011100010001
321111011012022
433023130101
52004312100
6221141225
745551441
oct17133421
97434168
103979025
112278556
1213ba815
13a9416b
14758121
15538e85
hex3cb711

3979025 has 6 divisors (see below), whose sum is σ = 4934022. Its totient is φ = 3183200.

The previous prime is 3979021. The next prime is 3979039. The reversal of 3979025 is 5209793.

It can be written as a sum of positive squares in 3 ways, for example, as 923521 + 3055504 = 961^2 + 1748^2 .

It is not a de Polignac number, because 3979025 - 22 = 3979021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3979021) 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, 79556 + ... + 79605.

It is an arithmetic number, because the mean of its divisors is an integer number (822337).

Almost surely, 23979025 is an apocalyptic number.

It is an amenable number.

3979025 is a deficient number, since it is larger than the sum of its proper divisors (954997).

3979025 is a wasteful number, since it uses less digits than its factorization.

3979025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159171 (or 159166 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 3979025 is about 1994.7493576888. The cubic root of 3979025 is about 158.4621543187.

The spelling of 3979025 in words is "three million, nine hundred seventy-nine thousand, twenty-five".

Divisors: 1 5 25 159161 795805 3979025