Base | Representation |
---|---|
bin | 11101101100010100000… |
… | …10010110001101100111 |
3 | 10121112101002210101011001 |
4 | 32312022002112031213 |
5 | 113203404104321411 |
6 | 2100403430054131 |
7 | 133465036303150 |
oct | 16661202261547 |
9 | 3545332711131 |
10 | 1020223120231 |
11 | 3637463994a7 |
12 | 1458867aa347 |
13 | 7528bc64183 |
14 | 3754420c927 |
15 | 1b811da6dc1 |
hex | ed8a096367 |
1020223120231 has 16 divisors (see below), whose sum is σ = 1167737545728. Its totient is φ = 873151171200.
The previous prime is 1020223120207. The next prime is 1020223120247. The reversal of 1020223120231 is 1320213220201.
1020223120231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 1020223120231 - 221 = 1020221023079 is a prime.
It is a super-2 number, since 2×10202231202312 (a number of 25 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 = 1020223120199 and 1020223120208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1020223120261) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39467871 + ... + 39493711.
It is an arithmetic number, because the mean of its divisors is an integer number (72983596608).
Almost surely, 21020223120231 is an apocalyptic number.
1020223120231 is a deficient number, since it is larger than the sum of its proper divisors (147514425497).
1020223120231 is an equidigital number, since it uses as much as digits as its factorization.
1020223120231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34182.
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 1020223120231 its reverse (1320213220201), we get a palindrome (2340436340432).
The spelling of 1020223120231 in words is "one trillion, twenty billion, two hundred twenty-three million, one hundred twenty thousand, two hundred thirty-one".
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