Base | Representation |
---|---|
bin | 111100111111010… |
… | …110111110010011 |
3 | 2122022102002022201 |
4 | 330333112332103 |
5 | 4043422222011 |
6 | 245311344031 |
7 | 34233262132 |
oct | 7477267623 |
9 | 2568362281 |
10 | 1023242131 |
11 | 485658a5a |
12 | 246822017 |
13 | 133cb7222 |
14 | 99c7b919 |
15 | 5ec72cc1 |
hex | 3cfd6f93 |
1023242131 has 8 divisors (see below), whose sum is σ = 1092268800. Its totient is φ = 955732680.
The previous prime is 1023242089. The next prime is 1023242149. The reversal of 1023242131 is 1312423201.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1023242131 - 29 = 1023241619 is a prime.
It is a super-2 number, since 2×10232421312 = 2094048917306842322, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1023242099 and 1023242108.
It is not an unprimeable number, because it can be changed into a prime (1023240131) 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, 377911 + ... + 380608.
It is an arithmetic number, because the mean of its divisors is an integer number (136533600).
Almost surely, 21023242131 is an apocalyptic number.
1023242131 is a deficient number, since it is larger than the sum of its proper divisors (69026669).
1023242131 is an equidigital number, since it uses as much as digits as its factorization.
1023242131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 758609.
The product of its (nonzero) digits is 288, while the sum is 19.
The square root of 1023242131 is about 31988.1561050336. The cubic root of 1023242131 is about 1007.6881183618.
Adding to 1023242131 its reverse (1312423201), we get a palindrome (2335665332).
The spelling of 1023242131 in words is "one billion, twenty-three million, two hundred forty-two thousand, one hundred thirty-one".
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