Base | Representation |
---|---|
bin | 110111111001010001… |
… | …0011001011101000101 |
3 | 102110211022200101100102 |
4 | 1233302202121131011 |
5 | 3431312001023141 |
6 | 131050440253445 |
7 | 11446351352642 |
oct | 1576242313505 |
9 | 373738611312 |
10 | 120033220421 |
11 | 469a6695114 |
12 | 1b31aa71285 |
13 | b41c04911a |
14 | 5b49912dc9 |
15 | 31c7d6899b |
hex | 1bf2899745 |
120033220421 has 8 divisors (see below), whose sum is σ = 120761856600. Its totient is φ = 119306783232.
The previous prime is 120033220409. The next prime is 120033220451. The reversal of 120033220421 is 124022330021.
It can be written as a sum of positive squares in 4 ways, for example, as 30936940321 + 89096280100 = 175889^2 + 298490^2 .
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 120033220421 - 214 = 120033204037 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 120033220393 and 120033220402.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120033220451) 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, 440180 + ... + 658653.
It is an arithmetic number, because the mean of its divisors is an integer number (15095232075).
Almost surely, 2120033220421 is an apocalyptic number.
It is an amenable number.
120033220421 is a deficient number, since it is larger than the sum of its proper divisors (728636179).
120033220421 is a wasteful number, since it uses less digits than its factorization.
120033220421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1099495.
The product of its (nonzero) digits is 576, while the sum is 20.
Adding to 120033220421 its reverse (124022330021), we get a palindrome (244055550442).
The spelling of 120033220421 in words is "one hundred twenty billion, thirty-three million, two hundred twenty thousand, four hundred twenty-one".
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