Base | Representation |
---|---|
bin | 100100101010011… |
… | …0101110011011111 |
3 | 10011201211122012010 |
4 | 1021110311303133 |
5 | 10004412400111 |
6 | 322023242303 |
7 | 42325346004 |
oct | 11124656337 |
9 | 3151748163 |
10 | 1230200031 |
11 | 581463545 |
12 | 2a3ba9393 |
13 | 167b39518 |
14 | b95518ab |
15 | 73003aa6 |
hex | 49535cdf |
1230200031 has 8 divisors (see below), whose sum is σ = 1663369344. Its totient is φ = 808582040.
The previous prime is 1230200017. The next prime is 1230200047. The reversal of 1230200031 is 1300020321.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1230200031 - 27 = 1230199903 is a prime.
It is a super-2 number, since 2×12302000312 = 3026784232544801922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230200431) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2887581 + ... + 2888006.
It is an arithmetic number, because the mean of its divisors is an integer number (207921168).
Almost surely, 21230200031 is an apocalyptic number.
1230200031 is a deficient number, since it is larger than the sum of its proper divisors (433169313).
1230200031 is an equidigital number, since it uses as much as digits as its factorization.
1230200031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5775661.
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 1230200031 is about 35074.2074892648. The cubic root of 1230200031 is about 1071.4993482413.
Adding to 1230200031 its reverse (1300020321), we get a palindrome (2530220352).
The spelling of 1230200031 in words is "one billion, two hundred thirty million, two hundred thousand, thirty-one".
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