Base | Representation |
---|---|
bin | 10101011100110111… |
… | …111101111100111111 |
3 | 2012110012200020120200 |
4 | 111130313331330333 |
5 | 334132422341111 |
6 | 14325313214543 |
7 | 1443531241401 |
oct | 253467757477 |
9 | 65405606520 |
10 | 23033012031 |
11 | 984a597937 |
12 | 4569861453 |
13 | 2230b7a103 |
14 | 1187042b71 |
15 | 8ec181256 |
hex | 55cdfdf3f |
23033012031 has 12 divisors (see below), whose sum is σ = 33481818552. Its totient is φ = 15257535696.
The previous prime is 23033011999. The next prime is 23033012039. The reversal of 23033012031 is 13021033032.
It is not a de Polignac number, because 23033012031 - 25 = 23033011999 is a prime.
It is a super-2 number, since 2×230330120312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 23033011995 and 23033012013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23033012039) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8148981 + ... + 8151806.
It is an arithmetic number, because the mean of its divisors is an integer number (2790151546).
Almost surely, 223033012031 is an apocalyptic number.
23033012031 is a deficient number, since it is larger than the sum of its proper divisors (10448806521).
23033012031 is a wasteful number, since it uses less digits than its factorization.
23033012031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16300950 (or 16300947 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
Adding to 23033012031 its reverse (13021033032), we get a palindrome (36054045063).
The spelling of 23033012031 in words is "twenty-three billion, thirty-three million, twelve thousand, thirty-one".
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