Base | Representation |
---|---|
bin | 1011100101110001… |
… | …0011010100011001 |
3 | 22000211021112201021 |
4 | 2321130103110121 |
5 | 22332432012441 |
6 | 1232415522441 |
7 | 140045540644 |
oct | 27134232431 |
9 | 8024245637 |
10 | 3111204121 |
11 | 1357214783 |
12 | 729b29421 |
13 | 3a774b9ac |
14 | 2172b2a5b |
15 | 13320d3d1 |
hex | b9713519 |
3111204121 has 8 divisors (see below), whose sum is σ = 3154775904. Its totient is φ = 3067777440.
The previous prime is 3111204097. The next prime is 3111204133. The reversal of 3111204121 is 1214021113.
3111204121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 3111204121 - 27 = 3111203993 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 3111204095 and 3111204104.
It is not an unprimeable number, because it can be changed into a prime (3111204521) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7270 + ... + 79216.
It is an arithmetic number, because the mean of its divisors is an integer number (394346988).
Almost surely, 23111204121 is an apocalyptic number.
It is an amenable number.
3111204121 is a deficient number, since it is larger than the sum of its proper divisors (43571783).
3111204121 is an equidigital number, since it uses as much as digits as its factorization.
3111204121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72551.
The product of its (nonzero) digits is 48, while the sum is 16.
The square root of 3111204121 is about 55778.1688566414. The cubic root of 3111204121 is about 1459.8542609577.
Adding to 3111204121 its reverse (1214021113), we get a palindrome (4325225234).
The spelling of 3111204121 in words is "three billion, one hundred eleven million, two hundred four thousand, one hundred twenty-one".
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