Base | Representation |
---|---|
bin | 1011111110000111101001 |
3 | 12220102120011 |
4 | 23332013221 |
5 | 1300404100 |
6 | 151131521 |
7 | 35446522 |
oct | 13760751 |
9 | 5812504 |
10 | 3138025 |
11 | 1853710 |
12 | 1073ba1 |
13 | 85b427 |
14 | 5b9849 |
15 | 41ebba |
hex | 2fe1e9 |
3138025 has 12 divisors (see below), whose sum is σ = 4245264. Its totient is φ = 2282000.
The previous prime is 3137999. The next prime is 3138029. The reversal of 3138025 is 5208313.
It is not a de Polignac number, because 3138025 - 25 = 3137993 is a prime.
It is an Ulam number.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 3137987 and 3138005.
It is not an unprimeable number, because it can be changed into a prime (3138029) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5431 + ... + 5980.
It is an arithmetic number, because the mean of its divisors is an integer number (353772).
Almost surely, 23138025 is an apocalyptic number.
It is an amenable number.
3138025 is a deficient number, since it is larger than the sum of its proper divisors (1107239).
3138025 is a wasteful number, since it uses less digits than its factorization.
3138025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11432 (or 11427 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 22.
The square root of 3138025 is about 1771.4471485201. The cubic root of 3138025 is about 146.4037271240.
It can be divided in two parts, 313 and 8025, that added together give a palindrome (8338).
The spelling of 3138025 in words is "three million, one hundred thirty-eight thousand, twenty-five".
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