Base | Representation |
---|---|
bin | 10101011011101000… |
… | …110001000110101111 |
3 | 2012101202121102110201 |
4 | 111123220301012233 |
5 | 334112114000111 |
6 | 14323252214331 |
7 | 1443156616651 |
oct | 253350610657 |
9 | 65352542421 |
10 | 23012250031 |
11 | 98398a7061 |
12 | 456290a3a7 |
13 | 222978abc4 |
14 | 118439a6d1 |
15 | 8ea42e6c1 |
hex | 55ba311af |
23012250031 has 4 divisors (see below), whose sum is σ = 23573524464. Its totient is φ = 22450975600.
The previous prime is 23012249989. The next prime is 23012250067. The reversal of 23012250031 is 13005221032.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 23012250031 - 213 = 23012241839 is a prime.
It is a super-2 number, since 2×230122500312 (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 = 23012249990 and 23012250008.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23012250091) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280637155 + ... + 280637236.
It is an arithmetic number, because the mean of its divisors is an integer number (5893381116).
Almost surely, 223012250031 is an apocalyptic number.
23012250031 is a deficient number, since it is larger than the sum of its proper divisors (561274433).
23012250031 is an equidigital number, since it uses as much as digits as its factorization.
23012250031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 561274432.
The product of its (nonzero) digits is 360, while the sum is 19.
Adding to 23012250031 its reverse (13005221032), we get a palindrome (36017471063).
The spelling of 23012250031 in words is "twenty-three billion, twelve million, two hundred fifty thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •