Base | Representation |
---|---|
bin | 11101110001110001011… |
… | …11101001010010011111 |
3 | 10121210221101012012110002 |
4 | 32320320233221102133 |
5 | 113230404440333211 |
6 | 2102010334004515 |
7 | 133630500315014 |
oct | 16707057512237 |
9 | 3553841165402 |
10 | 1023154230431 |
11 | 364a0a986a23 |
12 | 14636434673b |
13 | 756382a82c8 |
14 | 3774160170b |
15 | 1b93438e03b |
hex | ee38be949f |
1023154230431 has 8 divisors (see below), whose sum is σ = 1049467874400. Its totient is φ = 997148348640.
The previous prime is 1023154230379. The next prime is 1023154230451. The reversal of 1023154230431 is 1340324513201.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-1023154230431 is a prime.
It is a super-2 number, since 2×10231542304312 (a number of 25 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 = 1023154230394 and 1023154230403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1023154230451) 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, 76933811 + ... + 76947108.
It is an arithmetic number, because the mean of its divisors is an integer number (131183484300).
Almost surely, 21023154230431 is an apocalyptic number.
1023154230431 is a deficient number, since it is larger than the sum of its proper divisors (26313643969).
1023154230431 is a wasteful number, since it uses less digits than its factorization.
1023154230431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 153881089.
The product of its (nonzero) digits is 8640, while the sum is 29.
Adding to 1023154230431 its reverse (1340324513201), we get a palindrome (2363478743632).
The spelling of 1023154230431 in words is "one trillion, twenty-three billion, one hundred fifty-four million, two hundred thirty thousand, four hundred thirty-one".
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