Base | Representation |
---|---|
bin | 110111111110010001… |
… | …1010001010001010000 |
3 | 102111021000210201002111 |
4 | 1233330203101101100 |
5 | 3432133003034300 |
6 | 131115241155104 |
7 | 11453461344064 |
oct | 1577443212120 |
9 | 374230721074 |
10 | 120201221200 |
11 | 46a82501635 |
12 | 1b36718ba94 |
13 | b447aab478 |
14 | 5b63d65aa4 |
15 | 31d79a19ba |
hex | 1bfc8d1450 |
120201221200 has 60 divisors (see below), whose sum is σ = 288817583068. Its totient is φ = 48074803200.
The previous prime is 120201221149. The next prime is 120201221251. The reversal of 120201221200 is 2122102021.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (120201221149) and next prime (120201221251).
It can be written as a sum of positive squares in 6 ways, for example, as 7643655184 + 112557566016 = 87428^2 + 335496^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5538370 + ... + 5560030.
Almost surely, 2120201221200 is an apocalyptic number.
120201221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
120201221200 is an abundant number, since it is smaller than the sum of its proper divisors (168616361868).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120201221200 is a wasteful number, since it uses less digits than its factorization.
120201221200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35552 (or 35541 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 13.
Adding to 120201221200 its reverse (2122102021), we get a palindrome (122323323221).
The spelling of 120201221200 in words is "one hundred twenty billion, two hundred one million, two hundred twenty-one thousand, two hundred".
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