Base | Representation |
---|---|
bin | 111001101010… |
… | …0101101110100 |
3 | 2002212220200221 |
4 | 1303110231310 |
5 | 30214401122 |
6 | 2555544124 |
7 | 514651141 |
oct | 163245564 |
9 | 62786627 |
10 | 30231412 |
11 | 16079342 |
12 | a15b044 |
13 | 6356413 |
14 | 402d3c8 |
15 | 29c26c7 |
hex | 1cd4b74 |
30231412 has 12 divisors (see below), whose sum is σ = 53903556. Its totient is φ = 14830400.
The previous prime is 30231403. The next prime is 30231433. The reversal of 30231412 is 21413203.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 26255376 + 3976036 = 5124^2 + 1994^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71089 + ... + 71512.
It is an arithmetic number, because the mean of its divisors is an integer number (4491963).
Almost surely, 230231412 is an apocalyptic number.
It is an amenable number.
30231412 is a deficient number, since it is larger than the sum of its proper divisors (23672144).
30231412 is a wasteful number, since it uses less digits than its factorization.
30231412 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142658 (or 142656 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 30231412 is about 5498.3099221488. The cubic root of 30231412 is about 311.5201505017.
Adding to 30231412 its reverse (21413203), we get a palindrome (51644615).
The spelling of 30231412 in words is "thirty million, two hundred thirty-one thousand, four hundred twelve".
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