Base | Representation |
---|---|
bin | 110111111110111001… |
… | …0100111011000000000 |
3 | 102111022110221110012220 |
4 | 1233331302213120000 |
5 | 3432203314133440 |
6 | 131121303051040 |
7 | 11454133214205 |
oct | 1577562473000 |
9 | 374273843186 |
10 | 120222021120 |
11 | 46a93218953 |
12 | 1b372140a80 |
13 | b44c1b1a06 |
14 | 5b66a1bcac |
15 | 31d970e8d0 |
hex | 1bfdca7600 |
120222021120 has 80 divisors (see below), whose sum is σ = 384334798320. Its totient is φ = 32059203584.
The previous prime is 120222021109. The next prime is 120222021133. The reversal of 120222021120 is 21120222021.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 120222021120.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7819275 + ... + 7834634.
It is an arithmetic number, because the mean of its divisors is an integer number (4804184979).
Almost surely, 2120222021120 is an apocalyptic number.
120222021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
120222021120 is an abundant number, since it is smaller than the sum of its proper divisors (264112777200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120222021120 is an equidigital number, since it uses as much as digits as its factorization.
120222021120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15653935 (or 15653919 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 15.
Adding to 120222021120 its reverse (21120222021), we get a palindrome (141342243141).
The spelling of 120222021120 in words is "one hundred twenty billion, two hundred twenty-two million, twenty-one thousand, one hundred twenty".
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