Base | Representation |
---|---|
bin | 10010101111010011… |
… | …111100111100001100 |
3 | 1220221021102102010200 |
4 | 102233103330330030 |
5 | 312202001043312 |
6 | 13124333133500 |
7 | 1311422430036 |
oct | 225723747414 |
9 | 56837372120 |
10 | 20121112332 |
11 | 8595930562 |
12 | 3a9662a290 |
13 | 1b88800c39 |
14 | d8c410c56 |
15 | 7cb6e10dc |
hex | 4af4fcf0c |
20121112332 has 36 divisors (see below), whose sum is σ = 50938707456. Its totient is φ = 6696882720.
The previous prime is 20121112327. The next prime is 20121112343. The reversal of 20121112332 is 23321112102.
20121112332 is a `hidden beast` number, since 201 + 21 + 112 + 332 = 666.
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-2 number, since 2×201211123322 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
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, 398988 + ... + 446579.
It is an arithmetic number, because the mean of its divisors is an integer number (1414964096).
Almost surely, 220121112332 is an apocalyptic number.
It is an amenable number.
20121112332 is an abundant number, since it is smaller than the sum of its proper divisors (30817595124).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20121112332 is a wasteful number, since it uses less digits than its factorization.
20121112332 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 846238 (or 846233 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 20121112332 its reverse (23321112102), we get a palindrome (43442224434).
The spelling of 20121112332 in words is "twenty billion, one hundred twenty-one million, one hundred twelve thousand, three hundred thirty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •