Base | Representation |
---|---|
bin | 10010101111111110… |
… | …010010101010000011 |
3 | 1220222001022022002201 |
4 | 102233332102222003 |
5 | 312212321230311 |
6 | 13125411054031 |
7 | 1311615654451 |
oct | 225776225203 |
9 | 56861268081 |
10 | 20132211331 |
11 | 85a1121391 |
12 | 3a9a2a1317 |
13 | 1b8abb8aab |
14 | d8da9d9d1 |
15 | 7cc6849c1 |
hex | 4aff92a83 |
20132211331 has 8 divisors (see below), whose sum is σ = 20181450240. Its totient is φ = 20083009992.
The previous prime is 20132211317. The next prime is 20132211371. The reversal of 20132211331 is 13311223102.
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 20132211331 - 25 = 20132211299 is a prime.
It is a super-2 number, since 2×201322113312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20132211299 and 20132211308.
It is not an unprimeable number, because it can be changed into a prime (20132211371) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271260 + ... + 1286998.
It is an arithmetic number, because the mean of its divisors is an integer number (2522681280).
Almost surely, 220132211331 is an apocalyptic number.
20132211331 is a deficient number, since it is larger than the sum of its proper divisors (49238909).
20132211331 is a wasteful number, since it uses less digits than its factorization.
20132211331 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18785.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 20132211331 its reverse (13311223102), we get a palindrome (33443434433).
The spelling of 20132211331 in words is "twenty billion, one hundred thirty-two million, two hundred eleven thousand, three hundred thirty-one".
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