Base | Representation |
---|---|
bin | 10010110101111110… |
… | …111001100100101111 |
3 | 1221020002000121211210 |
4 | 102311332321210233 |
5 | 312414124042111 |
6 | 13143412045503 |
7 | 1314251644260 |
oct | 226576714457 |
9 | 57202017753 |
10 | 20233034031 |
11 | 8643024a31 |
12 | 3b08003893 |
13 | 1ba5a59bb2 |
14 | d9d226967 |
15 | 7d644d0a6 |
hex | 4b5fb992f |
20233034031 has 8 divisors (see below), whose sum is σ = 30831289984. Its totient is φ = 11561733720.
The previous prime is 20233033999. The next prime is 20233034033. The reversal of 20233034031 is 13043033202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20233034031 - 25 = 20233033999 is a prime.
It is a super-2 number, since 2×202330340312 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 963477811 = 20233034031 / (2 + 0 + 2 + 3 + 3 + 0 + 3 + 4 + 0 + 3 + 1).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20233033989 and 20233034007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20233034033) 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, 481738885 + ... + 481738926.
It is an arithmetic number, because the mean of its divisors is an integer number (3853911248).
Almost surely, 220233034031 is an apocalyptic number.
20233034031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
20233034031 is a deficient number, since it is larger than the sum of its proper divisors (10598255953).
20233034031 is an equidigital number, since it uses as much as digits as its factorization.
20233034031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 963477821.
The product of its (nonzero) digits is 1296, while the sum is 21.
Adding to 20233034031 its reverse (13043033202), we get a palindrome (33276067233).
The spelling of 20233034031 in words is "twenty billion, two hundred thirty-three million, thirty-four thousand, thirty-one".
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