Base | Representation |
---|---|
bin | 101111101001000111… |
… | …0011010100100010001 |
3 | 100210002020122121020022 |
4 | 1133102032122210101 |
5 | 3134013134221001 |
6 | 115000124553225 |
7 | 10251240131243 |
oct | 1372216324421 |
9 | 323066577208 |
10 | 102311242001 |
11 | 3a432035461 |
12 | 179b39b2815 |
13 | 98565bc867 |
14 | 4d47db8093 |
15 | 29dc0cc11b |
hex | 17d239a911 |
102311242001 has 4 divisors (see below), whose sum is σ = 108329550372. Its totient is φ = 96292933632.
The previous prime is 102311241943. The next prime is 102311242003. The reversal of 102311242001 is 100242113201.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100242113201 = 131 ⋅765206971.
It can be written as a sum of positive squares in 2 ways, for example, as 43077417601 + 59233824400 = 207551^2 + 243380^2 .
It is a cyclic number.
It is not a de Polignac number, because 102311242001 - 218 = 102310979857 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6018308353 = 102311242001 / (1 + 0 + 2 + 3 + 1 + 1 + 2 + 4 + 2 + 0 + 0 + 1).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (102311242003) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3009154160 + ... + 3009154193.
It is an arithmetic number, because the mean of its divisors is an integer number (27082387593).
Almost surely, 2102311242001 is an apocalyptic number.
It is an amenable number.
102311242001 is a deficient number, since it is larger than the sum of its proper divisors (6018308371).
102311242001 is an equidigital number, since it uses as much as digits as its factorization.
102311242001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6018308370.
The product of its (nonzero) digits is 96, while the sum is 17.
Adding to 102311242001 its reverse (100242113201), we get a palindrome (202553355202).
The spelling of 102311242001 in words is "one hundred two billion, three hundred eleven million, two hundred forty-two thousand, one".
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