Base | Representation |
---|---|
bin | 11101001001101100… |
… | …101101110111000111 |
3 | 2222210102210020101200 |
4 | 131021230231313013 |
5 | 1003101103330043 |
6 | 22213553553543 |
7 | 2155450031250 |
oct | 351154556707 |
9 | 88712706350 |
10 | 31301230023 |
11 | 12302801448 |
12 | 60968758b3 |
13 | 2c4ab40bab |
14 | 172d1a9b27 |
15 | c32ead7d3 |
hex | 749b2ddc7 |
31301230023 has 12 divisors (see below), whose sum is σ = 51671871888. Its totient is φ = 17886417120.
The previous prime is 31301229941. The next prime is 31301230031. The reversal of 31301230023 is 32003210313.
It is not a de Polignac number, because 31301230023 - 216 = 31301164487 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 31301229978 and 31301230005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31301230033) 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, 248422398 + ... + 248422523.
It is an arithmetic number, because the mean of its divisors is an integer number (4305989324).
Almost surely, 231301230023 is an apocalyptic number.
31301230023 is a deficient number, since it is larger than the sum of its proper divisors (20370641865).
31301230023 is a wasteful number, since it uses less digits than its factorization.
31301230023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 496844934 (or 496844931 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
Adding to 31301230023 its reverse (32003210313), we get a palindrome (63304440336).
The spelling of 31301230023 in words is "thirty-one billion, three hundred one million, two hundred thirty thousand, twenty-three".
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