Base | Representation |
---|---|
bin | 10001110000010100010… |
… | …110101011010100110001 |
3 | 11022122022201100210002010 |
4 | 101300110112223110301 |
5 | 124442242210413014 |
6 | 2332302314513133 |
7 | 154102342406412 |
oct | 21602426532461 |
9 | 4278281323063 |
10 | 1220112201009 |
11 | 4304a0590419 |
12 | 1785711357a9 |
13 | 8b0962b8770 |
14 | 430a7699809 |
15 | 21b1071b359 |
hex | 11c145ab531 |
1220112201009 has 8 divisors (see below), whose sum is σ = 1751955980992. Its totient is φ = 750838277520.
The previous prime is 1220112200971. The next prime is 1220112201019. The reversal of 1220112201009 is 9001022110221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1220112201009 - 224 = 1220095423793 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1220112201019) 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, 15642464077 + ... + 15642464154.
It is an arithmetic number, because the mean of its divisors is an integer number (218994497624).
Almost surely, 21220112201009 is an apocalyptic number.
It is an amenable number.
1220112201009 is a deficient number, since it is larger than the sum of its proper divisors (531843779983).
1220112201009 is a wasteful number, since it uses less digits than its factorization.
1220112201009 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31284928247.
The product of its (nonzero) digits is 144, while the sum is 21.
The spelling of 1220112201009 in words is "one trillion, two hundred twenty billion, one hundred twelve million, two hundred one thousand, nine".
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