Base | Representation |
---|---|
bin | 10101100001110000… |
… | …110101111110011111 |
3 | 2012122221000012200012 |
4 | 111201300311332133 |
5 | 334314421433211 |
6 | 14341403153435 |
7 | 1445545342163 |
oct | 254160657637 |
9 | 65587005605 |
10 | 23115030431 |
11 | 9891917539 |
12 | 459121587b |
13 | 2244b660cc |
14 | 1193cb2ca3 |
15 | 904482d8b |
hex | 561c35f9f |
23115030431 has 8 divisors (see below), whose sum is σ = 24333006720. Its totient is φ = 21897193752.
The previous prime is 23115030361. The next prime is 23115030457. The reversal of 23115030431 is 13403051132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 23115030431 - 210 = 23115029407 is a prime.
It is a super-2 number, since 2×231150304312 (a number of 22 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 = 23115030397 and 23115030406.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23115030481) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626606 + ... + 662468.
It is an arithmetic number, because the mean of its divisors is an integer number (3041625840).
Almost surely, 223115030431 is an apocalyptic number.
23115030431 is a deficient number, since it is larger than the sum of its proper divisors (1217976289).
23115030431 is a wasteful number, since it uses less digits than its factorization.
23115030431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 69805.
The product of its (nonzero) digits is 1080, while the sum is 23.
Adding to 23115030431 its reverse (13403051132), we get a palindrome (36518081563).
The spelling of 23115030431 in words is "twenty-three billion, one hundred fifteen million, thirty thousand, four hundred thirty-one".
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