Base | Representation |
---|---|
bin | 110111111000111000… |
… | …0101110101100011101 |
3 | 102110210102011212222210 |
4 | 1233301300232230131 |
5 | 3431300132401341 |
6 | 131045253231033 |
7 | 11446132604115 |
oct | 1576160565435 |
9 | 373712155883 |
10 | 120020200221 |
11 | 4699a301919 |
12 | 1b316632479 |
13 | b41943a96c |
14 | 5b47cc4045 |
15 | 31c6b45c16 |
hex | 1bf1c2eb1d |
120020200221 has 16 divisors (see below), whose sum is σ = 163781798400. Its totient is φ = 78136791600.
The previous prime is 120020200219. The next prime is 120020200283. The reversal of 120020200221 is 122002020021.
It is not a de Polignac number, because 120020200221 - 21 = 120020200219 is a prime.
It is a super-2 number, since 2×1200202002212 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 120020200197 and 120020200206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120020200021) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559480 + ... + 743678.
It is an arithmetic number, because the mean of its divisors is an integer number (10236362400).
Almost surely, 2120020200221 is an apocalyptic number.
It is an amenable number.
120020200221 is a deficient number, since it is larger than the sum of its proper divisors (43761598179).
120020200221 is a wasteful number, since it uses less digits than its factorization.
120020200221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 189296.
The product of its (nonzero) digits is 32, while the sum is 12.
Adding to 120020200221 its reverse (122002020021), we get a palindrome (242022220242).
The spelling of 120020200221 in words is "one hundred twenty billion, twenty million, two hundred thousand, two hundred twenty-one".
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