Base | Representation |
---|---|
bin | 110000011111… |
… | …000100000001 |
3 | 212220202001010 |
4 | 300133010001 |
5 | 11223211040 |
6 | 1132231133 |
7 | 213014550 |
oct | 60370401 |
9 | 25822033 |
10 | 12710145 |
11 | 71a1358 |
12 | 430b4a9 |
13 | 28302c6 |
14 | 198bd97 |
15 | 11b0e80 |
hex | c1f101 |
12710145 has 64 divisors (see below), whose sum is σ = 25620480. Its totient is φ = 5246208.
The previous prime is 12710119. The next prime is 12710153. The reversal of 12710145 is 54101721.
It is a happy number.
It is not a de Polignac number, because 12710145 - 26 = 12710081 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45747 + ... + 46023.
It is an arithmetic number, because the mean of its divisors is an integer number (400320).
Almost surely, 212710145 is an apocalyptic number.
12710145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12710145 is an abundant number, since it is smaller than the sum of its proper divisors (12910335).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12710145 is a wasteful number, since it uses less digits than its factorization.
12710145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 334.
The product of its (nonzero) digits is 280, while the sum is 21.
The square root of 12710145 is about 3565.1290299230. The cubic root of 12710145 is about 233.3727631778.
Adding to 12710145 its reverse (54101721), we get a palindrome (66811866).
The spelling of 12710145 in words is "twelve million, seven hundred ten thousand, one hundred forty-five".
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