Base | Representation |
---|---|
bin | 101111100111000011… |
… | …1000111110011110001 |
3 | 100202220102202222121221 |
4 | 1133032013013303301 |
5 | 3133343002040142 |
6 | 114545221345041 |
7 | 10246441353556 |
oct | 1371607076361 |
9 | 322812688557 |
10 | 102242221297 |
11 | 3a3a7083157 |
12 | 17994868181 |
13 | 98452049c8 |
14 | 4d3cb6ca2d |
15 | 29d5ee6767 |
hex | 17ce1c7cf1 |
102242221297 has 4 divisors (see below), whose sum is σ = 102255298560. Its totient is φ = 102229144036.
The previous prime is 102242221187. The next prime is 102242221357. The reversal of 102242221297 is 792122242201.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 792122242201 = 23 ⋅34440097487.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-102242221297 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (102242221097) 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, 6526897 + ... + 6542542.
It is an arithmetic number, because the mean of its divisors is an integer number (25563824640).
Almost surely, 2102242221297 is an apocalyptic number.
It is an amenable number.
102242221297 is a deficient number, since it is larger than the sum of its proper divisors (13077263).
102242221297 is an equidigital number, since it uses as much as digits as its factorization.
102242221297 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13077262.
The product of its (nonzero) digits is 16128, while the sum is 34.
Adding to 102242221297 its reverse (792122242201), we get a palindrome (894364463498).
The spelling of 102242221297 in words is "one hundred two billion, two hundred forty-two million, two hundred twenty-one thousand, two hundred ninety-seven".
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