Base | Representation |
---|---|
bin | 101010111110100… |
… | …1011001100111111 |
3 | 10201111120021100021 |
4 | 1111331023030333 |
5 | 10423134200111 |
6 | 355033113011 |
7 | 50510435161 |
oct | 12575131477 |
9 | 3644507307 |
10 | 1442100031 |
11 | 680034109 |
12 | 342b58767 |
13 | 19c9cc138 |
14 | d9750931 |
15 | 8690dd71 |
hex | 55f4b33f |
1442100031 has 2 divisors, whose sum is σ = 1442100032. Its totient is φ = 1442100030.
The previous prime is 1442099983. The next prime is 1442100047. The reversal of 1442100031 is 1300012441.
It is an a-pointer prime, because the next prime (1442100047) can be obtained adding 1442100031 to its sum of digits (16).
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1442100031 - 223 = 1433711423 is a prime.
It is a super-2 number, since 2×14421000312 = 4159304998820401922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1442099978 and 1442100014.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1442100061) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721050015 + 721050016.
It is an arithmetic number, because the mean of its divisors is an integer number (721050016).
Almost surely, 21442100031 is an apocalyptic number.
1442100031 is a deficient number, since it is larger than the sum of its proper divisors (1).
1442100031 is an equidigital number, since it uses as much as digits as its factorization.
1442100031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 1442100031 is about 37974.9921790644. The cubic root of 1442100031 is about 1129.7919138075.
Adding to 1442100031 its reverse (1300012441), we get a palindrome (2742112472).
The spelling of 1442100031 in words is "one billion, four hundred forty-two million, one hundred thousand, thirty-one".
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