Base | Representation |
---|---|
bin | 1101101001001001110100… |
… | …00101101001010101101011 |
3 | 10221020002122122121122222101 |
4 | 12310210322011221111223 |
5 | 12413020201201334011 |
6 | 143450225555234231 |
7 | 6214344463625263 |
oct | 664447205512553 |
9 | 127202578548871 |
10 | 30001321121131 |
11 | 96175417049a8 |
12 | 34465598a8977 |
13 | 1398160060a29 |
14 | 75a100a087a3 |
15 | 37060ac8c2c1 |
hex | 1b493a16956b |
30001321121131 has 4 divisors (see below), whose sum is σ = 30099045294472. Its totient is φ = 29903596947792.
The previous prime is 30001321121117. The next prime is 30001321121143. The reversal of 30001321121131 is 13112112310003.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30001321121131 - 215 = 30001321088363 is a prime.
It is a super-2 number, since 2×300013211211312 (a number of 28 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30001321121099 and 30001321121108.
It is not an unprimeable number, because it can be changed into a prime (30001321128131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48862086210 + ... + 48862086823.
It is an arithmetic number, because the mean of its divisors is an integer number (7524761323618).
Almost surely, 230001321121131 is an apocalyptic number.
30001321121131 is a deficient number, since it is larger than the sum of its proper divisors (97724173341).
30001321121131 is an equidigital number, since it uses as much as digits as its factorization.
30001321121131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97724173340.
The product of its (nonzero) digits is 108, while the sum is 19.
Adding to 30001321121131 its reverse (13112112310003), we get a palindrome (43113433431134).
The spelling of 30001321121131 in words is "thirty trillion, one billion, three hundred twenty-one million, one hundred twenty-one thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •