Base | Representation |
---|---|
bin | 1111111001001… |
… | …10000101000101 |
3 | 100021212121200121 |
4 | 13330212011011 |
5 | 233112401000 |
6 | 21121341541 |
7 | 3206146663 |
oct | 774460505 |
9 | 307777617 |
10 | 133325125 |
11 | 6929315a |
12 | 387978b1 |
13 | 2181110b |
14 | 139c7c33 |
15 | ba88b1a |
hex | 7f26145 |
133325125 has 16 divisors (see below), whose sum is σ = 166712832. Its totient is φ = 106453200.
The previous prime is 133325123. The next prime is 133325131. The reversal of 133325125 is 521523331.
It is not a de Polignac number, because 133325125 - 21 = 133325123 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 133325125.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (133325123) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120324 + ... + 121426.
It is an arithmetic number, because the mean of its divisors is an integer number (10419552).
Almost surely, 2133325125 is an apocalyptic number.
It is an amenable number.
133325125 is a deficient number, since it is larger than the sum of its proper divisors (33387707).
133325125 is an equidigital number, since it uses as much as digits as its factorization.
133325125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2085 (or 2075 counting only the distinct ones).
The product of its digits is 2700, while the sum is 25.
The square root of 133325125 is about 11546.6499470626. The cubic root of 133325125 is about 510.8624711751.
Adding to 133325125 its reverse (521523331), we get a palindrome (654848456).
The spelling of 133325125 in words is "one hundred thirty-three million, three hundred twenty-five thousand, one hundred twenty-five".
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