Base | Representation |
---|---|
bin | 100100101010010… |
… | …0010110000101111 |
3 | 10011201200200012020 |
4 | 1021110202300233 |
5 | 10004402401111 |
6 | 322021441223 |
7 | 42324602415 |
oct | 11124426057 |
9 | 3151620166 |
10 | 1230122031 |
11 | 58140a986 |
12 | 2a3b70213 |
13 | 167b0cb78 |
14 | b95312b5 |
15 | 72eda906 |
hex | 49522c2f |
1230122031 has 8 divisors (see below), whose sum is σ = 1641855744. Its totient is φ = 819234840.
The previous prime is 1230122021. The next prime is 1230122039. The reversal of 1230122031 is 1302210321.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1230122031 - 25 = 1230121999 is a prime.
It is a super-2 number, since 2×12301220312 = 3026400422303129922, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 1230122031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230122039) 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, 208231 + ... + 214056.
It is an arithmetic number, because the mean of its divisors is an integer number (205231968).
Almost surely, 21230122031 is an apocalyptic number.
1230122031 is a deficient number, since it is larger than the sum of its proper divisors (411733713).
1230122031 is an equidigital number, since it uses as much as digits as its factorization.
1230122031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 423261.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 1230122031 is about 35073.0955434504. The cubic root of 1230122031 is about 1071.4767018658.
Adding to 1230122031 its reverse (1302210321), we get a palindrome (2532332352).
The spelling of 1230122031 in words is "one billion, two hundred thirty million, one hundred twenty-two thousand, thirty-one".
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