Base | Representation |
---|---|
bin | 10010110000100111… |
… | …100111010110111111 |
3 | 1220222210200122202211 |
4 | 102300213213112333 |
5 | 312223104402111 |
6 | 13130435201251 |
7 | 1312110022615 |
oct | 226047472677 |
9 | 56883618684 |
10 | 20143044031 |
11 | 85a7250130 |
12 | 3aa1a46227 |
13 | 1b9020c686 |
14 | d912bd6b5 |
15 | 7cd5c4521 |
hex | 4b09e75bf |
20143044031 has 16 divisors (see below), whose sum is σ = 23320908288. Its totient is φ = 17194633600.
The previous prime is 20143044017. The next prime is 20143044043. The reversal of 20143044031 is 13044034102.
It is a cyclic number.
It is not a de Polignac number, because 20143044031 - 219 = 20142519743 is a prime.
It is a super-2 number, since 2×201430440312 (a number of 21 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 = 20143043993 and 20143044011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20143044001) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44365 + ... + 205558.
It is an arithmetic number, because the mean of its divisors is an integer number (1457556768).
Almost surely, 220143044031 is an apocalyptic number.
20143044031 is a deficient number, since it is larger than the sum of its proper divisors (3177864257).
20143044031 is a wasteful number, since it uses less digits than its factorization.
20143044031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 250382.
The product of its (nonzero) digits is 1152, while the sum is 22.
Adding to 20143044031 its reverse (13044034102), we get a palindrome (33187078133).
The spelling of 20143044031 in words is "twenty billion, one hundred forty-three million, forty-four thousand, thirty-one".
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