Base | Representation |
---|---|
bin | 100000110110010… |
… | …0110110001000001 |
3 | 2211211000011211122 |
4 | 1001230212301001 |
5 | 4224131242121 |
6 | 301212122025 |
7 | 36212435351 |
oct | 10154466101 |
9 | 2754004748 |
10 | 1102212161 |
11 | 516196346 |
12 | 269166315 |
13 | 14747685b |
14 | a6556b61 |
15 | 66b715ab |
hex | 41b26c41 |
1102212161 has 4 divisors (see below), whose sum is σ = 1137767424. Its totient is φ = 1066656900.
The previous prime is 1102212157. The next prime is 1102212179. The reversal of 1102212161 is 1612122011.
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.
It is a cyclic number.
It is not a de Polignac number, because 1102212161 - 22 = 1102212157 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1102212121) 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, 17777585 + ... + 17777646.
It is an arithmetic number, because the mean of its divisors is an integer number (284441856).
Almost surely, 21102212161 is an apocalyptic number.
It is an amenable number.
1102212161 is a deficient number, since it is larger than the sum of its proper divisors (35555263).
1102212161 is an equidigital number, since it uses as much as digits as its factorization.
1102212161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35555262.
The product of its (nonzero) digits is 48, while the sum is 17.
The square root of 1102212161 is about 33199.5807353045. The cubic root of 1102212161 is about 1032.9716429489.
Adding to 1102212161 its reverse (1612122011), we get a palindrome (2714334172).
The spelling of 1102212161 in words is "one billion, one hundred two million, two hundred twelve thousand, one hundred sixty-one".
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