Base | Representation |
---|---|
bin | 10001110011010010011… |
… | …011111001110010101111 |
3 | 11022221112222002211221120 |
4 | 101303102123321302233 |
5 | 130020310104221111 |
6 | 2333550555032023 |
7 | 154244354664201 |
oct | 21632233716257 |
9 | 4287488084846 |
10 | 1223301242031 |
11 | 431887729110 |
12 | 17910113b613 |
13 | 8b483bbb09b |
14 | 432cb030771 |
15 | 21c4a6a2406 |
hex | 11cd26f9caf |
1223301242031 has 32 divisors (see below), whose sum is σ = 1806161856768. Its totient is φ = 730225098240.
The previous prime is 1223301241993. The next prime is 1223301242057. The reversal of 1223301242031 is 1302421033221.
It is not a de Polignac number, because 1223301242031 - 217 = 1223301110959 is a prime.
It is a super-2 number, since 2×12233012420312 (a number of 25 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1223301241992 and 1223301242010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1223301242131) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17194825 + ... + 17265821.
It is an arithmetic number, because the mean of its divisors is an integer number (56442558024).
Almost surely, 21223301242031 is an apocalyptic number.
1223301242031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
1223301242031 is a deficient number, since it is larger than the sum of its proper divisors (582860614737).
1223301242031 is a wasteful number, since it uses less digits than its factorization.
1223301242031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 78871.
The product of its (nonzero) digits is 1728, while the sum is 24.
Adding to 1223301242031 its reverse (1302421033221), we get a palindrome (2525722275252).
The spelling of 1223301242031 in words is "one trillion, two hundred twenty-three billion, three hundred one million, two hundred forty-two thousand, thirty-one".
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