Base | Representation |
---|---|
bin | 10101011011110011… |
… | …101100011111101011 |
3 | 2012101221222222002201 |
4 | 111123303230133223 |
5 | 334113332132411 |
6 | 14323433441031 |
7 | 1443223150600 |
oct | 253363543753 |
9 | 65357888081 |
10 | 23015114731 |
11 | 9840483384 |
12 | 4563870177 |
13 | 222a251aab |
14 | 11849046a7 |
15 | 8ea7e83c1 |
hex | 55bcec7eb |
23015114731 has 12 divisors (see below), whose sum is σ = 26776988040. Its totient is φ = 19724070240.
The previous prime is 23015114729. The next prime is 23015114791. The reversal of 23015114731 is 13741151032.
It is not a de Polignac number, because 23015114731 - 21 = 23015114729 is a prime.
It is a super-2 number, since 2×230151147312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 23015114731.
It is not an unprimeable number, because it can be changed into a prime (23015114711) 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 11 ways as a sum of consecutive naturals, for example, 300880 + ... + 369538.
It is an arithmetic number, because the mean of its divisors is an integer number (2231415670).
Almost surely, 223015114731 is an apocalyptic number.
23015114731 is a deficient number, since it is larger than the sum of its proper divisors (3761873309).
23015114731 is an equidigital number, since it uses as much as digits as its factorization.
23015114731 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75514 (or 75507 counting only the distinct ones).
The product of its (nonzero) digits is 2520, while the sum is 28.
Adding to 23015114731 its reverse (13741151032), we get a palindrome (36756265763).
The spelling of 23015114731 in words is "twenty-three billion, fifteen million, one hundred fourteen thousand, seven hundred thirty-one".
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