Base | Representation |
---|---|
bin | 110111111110010001… |
… | …0011011010100011101 |
3 | 102111021000101110222002 |
4 | 1233330202123110131 |
5 | 3432132424001341 |
6 | 131115232332045 |
7 | 11453456433611 |
oct | 1577442332435 |
9 | 374230343862 |
10 | 120201000221 |
11 | 46a82370605 |
12 | 1b3670a4025 |
13 | b447a31a03 |
14 | 5b63d09341 |
15 | 31d795b29b |
hex | 1bfc89b51d |
120201000221 has 4 divisors (see below), whose sum is σ = 120203074944. Its totient is φ = 120198925500.
The previous prime is 120201000167. The next prime is 120201000289. The reversal of 120201000221 is 122000102021.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-120201000221 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120201000421) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947885 + ... + 1067186.
It is an arithmetic number, because the mean of its divisors is an integer number (30050768736).
Almost surely, 2120201000221 is an apocalyptic number.
It is an amenable number.
120201000221 is a deficient number, since it is larger than the sum of its proper divisors (2074723).
120201000221 is an equidigital number, since it uses as much as digits as its factorization.
120201000221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2074722.
The product of its (nonzero) digits is 16, while the sum is 11.
Adding to 120201000221 its reverse (122000102021), we get a palindrome (242201102242).
The spelling of 120201000221 in words is "one hundred twenty billion, two hundred one million, two hundred twenty-one", and thus it is an aban number.
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