Base | Representation |
---|---|
bin | 11100000010110000… |
… | …011110001110100111 |
3 | 2212201111012220221222 |
4 | 130002300132032213 |
5 | 443131411012411 |
6 | 21455515530555 |
7 | 2114115356660 |
oct | 340260361647 |
9 | 85644186858 |
10 | 30111032231 |
11 | 11851990205 |
12 | 5a04159a5b |
13 | 2abb39c247 |
14 | 16590ac367 |
15 | bb375c4db |
hex | 702c1e3a7 |
30111032231 has 8 divisors (see below), whose sum is σ = 34430065824. Its totient is φ = 25796363040.
The previous prime is 30111032221. The next prime is 30111032269. The reversal of 30111032231 is 13223011103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30111032231 - 26 = 30111032167 is a prime.
It is a super-2 number, since 2×301110322312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30111032221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076300 + ... + 1103921.
It is an arithmetic number, because the mean of its divisors is an integer number (4303758228).
Almost surely, 230111032231 is an apocalyptic number.
30111032231 is a deficient number, since it is larger than the sum of its proper divisors (4319033593).
30111032231 is a wasteful number, since it uses less digits than its factorization.
30111032231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2182201.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 30111032231 its reverse (13223011103), we get a palindrome (43334043334).
The spelling of 30111032231 in words is "thirty billion, one hundred eleven million, thirty-two thousand, two hundred thirty-one".
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