Base | Representation |
---|---|
bin | 101111111101… |
… | …011001101111 |
3 | 212122201220200 |
4 | 233331121233 |
5 | 11204303041 |
6 | 1125244543 |
7 | 211601565 |
oct | 57753157 |
9 | 25581820 |
10 | 12572271 |
11 | 7107808 |
12 | 4263753 |
13 | 27b261a |
14 | 1953a35 |
15 | 11851b6 |
hex | bfd66f |
12572271 has 12 divisors (see below), whose sum is σ = 18222048. Its totient is φ = 8352864.
The previous prime is 12572269. The next prime is 12572291. The reversal of 12572271 is 17227521.
It is not a de Polignac number, because 12572271 - 21 = 12572269 is a prime.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12572291) 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, 586 + ... + 5048.
It is an arithmetic number, because the mean of its divisors is an integer number (1518504).
Almost surely, 212572271 is an apocalyptic number.
12572271 is a deficient number, since it is larger than the sum of its proper divisors (5649777).
12572271 is a wasteful number, since it uses less digits than its factorization.
12572271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4782 (or 4779 counting only the distinct ones).
The product of its digits is 1960, while the sum is 27.
The square root of 12572271 is about 3545.7398381720. The cubic root of 12572271 is about 232.5258521375.
Adding to 12572271 its reverse (17227521), we get a palindrome (29799792).
The spelling of 12572271 in words is "twelve million, five hundred seventy-two thousand, two hundred seventy-one".
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