Base | Representation |
---|---|
bin | 111011110011… |
… | …0110100001101 |
3 | 2011222221202220 |
4 | 1313212310031 |
5 | 31011313000 |
6 | 3040005553 |
7 | 530335305 |
oct | 167466415 |
9 | 64887686 |
10 | 31354125 |
11 | 16775900 |
12 | a6008b9 |
13 | 665a44a |
14 | 4242605 |
15 | 2b451a0 |
hex | 1de6d0d |
31354125 has 48 divisors (see below), whose sum is σ = 57430464. Its totient is φ = 15180000.
The previous prime is 31354121. The next prime is 31354151. The reversal of 31354125 is 52145313.
It is not a de Polignac number, because 31354125 - 22 = 31354121 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 31354095 and 31354104.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31354121) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45030 + ... + 45720.
It is an arithmetic number, because the mean of its divisors is an integer number (1196468).
Almost surely, 231354125 is an apocalyptic number.
It is an amenable number.
31354125 is a deficient number, since it is larger than the sum of its proper divisors (26076339).
31354125 is a wasteful number, since it uses less digits than its factorization.
31354125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 731 (or 710 counting only the distinct ones).
The product of its digits is 1800, while the sum is 24.
The square root of 31354125 is about 5599.4754218587. The cubic root of 31354125 is about 315.3297127161.
Adding to 31354125 its reverse (52145313), we get a palindrome (83499438).
It can be divided in two parts, 3135 and 4125, that added together give a triangular number (7260 = T120).
The spelling of 31354125 in words is "thirty-one million, three hundred fifty-four thousand, one hundred twenty-five".
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