Base | Representation |
---|---|
bin | 100001000111000… |
… | …1101001010101001 |
3 | 2212102120200012100 |
4 | 1002032031022221 |
5 | 4233410121301 |
6 | 302125004013 |
7 | 36350341644 |
oct | 10216151251 |
9 | 2772520170 |
10 | 1111020201 |
11 | 520161a15 |
12 | 2700b3609 |
13 | 14923ba05 |
14 | a77aaa5b |
15 | 67811286 |
hex | 4238d2a9 |
1111020201 has 24 divisors (see below), whose sum is σ = 1652852864. Its totient is φ = 718619040.
The previous prime is 1111020179. The next prime is 1111020217. The reversal of 1111020201 is 1020201111.
It is a happy number.
It is not a de Polignac number, because 1111020201 - 210 = 1111019177 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1111020241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117666 + ... + 126756.
Almost surely, 21111020201 is an apocalyptic number.
It is an amenable number.
1111020201 is a deficient number, since it is larger than the sum of its proper divisors (541832663).
1111020201 is a wasteful number, since it uses less digits than its factorization.
1111020201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9501 (or 9498 counting only the distinct ones).
The product of its (nonzero) digits is 4, while the sum is 9.
The square root of 1111020201 is about 33331.9696537723. The cubic root of 1111020201 is about 1035.7159199956.
Adding to 1111020201 its reverse (1020201111), we get a palindrome (2131221312).
It can be divided in two parts, 111 and 1020201, that multiplied together give a palindrome (113242311).
The spelling of 1111020201 in words is "one billion, one hundred eleven million, twenty thousand, two hundred one".
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