Base | Representation |
---|---|
bin | 101111101001011101… |
… | …1110100001000111111 |
3 | 100210010002001020122121 |
4 | 1133102323310020333 |
5 | 3134024211040411 |
6 | 115001232023411 |
7 | 10251443236561 |
oct | 1372273641077 |
9 | 323102036577 |
10 | 102323143231 |
11 | 3a438823a91 |
12 | 179b7991b67 |
13 | 9858bc88ca |
14 | 4d497d5331 |
15 | 29dd17d571 |
hex | 17d2ef423f |
102323143231 has 8 divisors (see below), whose sum is σ = 103898960384. Its totient is φ = 100748755800.
The previous prime is 102323143171. The next prime is 102323143253. The reversal of 102323143231 is 132341323201.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 102323143231 - 213 = 102323135039 is a prime.
It is a super-2 number, since 2×1023231432312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 102323143196 and 102323143205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102323143031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212745 + ... + 499906.
It is an arithmetic number, because the mean of its divisors is an integer number (12987370048).
Almost surely, 2102323143231 is an apocalyptic number.
102323143231 is a deficient number, since it is larger than the sum of its proper divisors (1575817153).
102323143231 is an equidigital number, since it uses as much as digits as its factorization.
102323143231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 714861.
The product of its (nonzero) digits is 2592, while the sum is 25.
Adding to 102323143231 its reverse (132341323201), we get a palindrome (234664466432).
The spelling of 102323143231 in words is "one hundred two billion, three hundred twenty-three million, one hundred forty-three thousand, two hundred thirty-one".
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