Base | Representation |
---|---|
bin | 10100100110100101… |
… | …100100111001001100 |
3 | 2010002201212021100102 |
4 | 110212211210321030 |
5 | 330301242034012 |
6 | 14055055550232 |
7 | 1412131530344 |
oct | 244645447114 |
9 | 63081767312 |
10 | 22122221132 |
11 | 9422465190 |
12 | 435482b378 |
13 | 2117275b9b |
14 | 10dc0b7d24 |
15 | 8972222c2 |
hex | 526964e4c |
22122221132 has 48 divisors (see below), whose sum is σ = 45402094080. Its totient is φ = 9323611200.
The previous prime is 22122221111. The next prime is 22122221141. The reversal of 22122221132 is 23112222122.
It is a super-2 number, since 2×221222211322 (a number of 21 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242219 + ... + 320802.
It is an arithmetic number, because the mean of its divisors is an integer number (945876960).
Almost surely, 222122221132 is an apocalyptic number.
22122221132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
22122221132 is an abundant number, since it is smaller than the sum of its proper divisors (23279872948).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22122221132 is a wasteful number, since it uses less digits than its factorization.
22122221132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 563102 (or 563100 counting only the distinct ones).
The product of its digits is 384, while the sum is 20.
Adding to 22122221132 its reverse (23112222122), we get a palindrome (45234443254).
The spelling of 22122221132 in words is "twenty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred thirty-two".
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