Base | Representation |
---|---|
bin | 111101000000000… |
… | …000010011100111 |
3 | 2122022201200120002 |
4 | 331000000103213 |
5 | 4043443131211 |
6 | 245315131515 |
7 | 34234565540 |
oct | 7500002347 |
9 | 2568650502 |
10 | 1023411431 |
11 | 485764179 |
12 | 2468a3b9b |
13 | 1340462c3 |
14 | 99cc34c7 |
15 | 5eca803b |
hex | 3d0004e7 |
1023411431 has 16 divisors (see below), whose sum is σ = 1181461248. Its totient is φ = 868358400.
The previous prime is 1023411419. The next prime is 1023411449. The reversal of 1023411431 is 1341143201.
It is not a de Polignac number, because 1023411431 - 214 = 1023395047 is a prime.
It is a super-2 number, since 2×10234114312 = 2094741914202935522, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1023411461) 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, 449111 + ... + 451383.
It is an arithmetic number, because the mean of its divisors is an integer number (73841328).
Almost surely, 21023411431 is an apocalyptic number.
1023411431 is a deficient number, since it is larger than the sum of its proper divisors (158049817).
1023411431 is a wasteful number, since it uses less digits than its factorization.
1023411431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2902.
The product of its (nonzero) digits is 288, while the sum is 20.
The square root of 1023411431 is about 31990.8022875326. The cubic root of 1023411431 is about 1007.7436908033.
Adding to 1023411431 its reverse (1341143201), we get a palindrome (2364554632).
The spelling of 1023411431 in words is "one billion, twenty-three million, four hundred eleven thousand, four hundred thirty-one".
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