Base | Representation |
---|---|
bin | 100100001001100… |
… | …1110101000000000 |
3 | 10010112110210110001 |
4 | 1020103032220000 |
5 | 4441012001232 |
6 | 320210445344 |
7 | 42026221465 |
oct | 11023165000 |
9 | 3115423401 |
10 | 1213000192 |
11 | 572785aa8 |
12 | 29a293854 |
13 | 1643c67c1 |
14 | b715566c |
15 | 717576e7 |
hex | 484cea00 |
1213000192 has 40 divisors (see below), whose sum is σ = 2441463156. Its totient is φ = 602038272.
The previous prime is 1213000181. The next prime is 1213000213. The reversal of 1213000192 is 2910003121.
It can be written as a sum of positive squares in 2 ways, for example, as 1140818176 + 72182016 = 33776^2 + 8496^2 .
It is a super-3 number, since 3×12130001923 (a number of 28 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61498 + ... + 78790.
Almost surely, 21213000192 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1213000192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1220731578).
1213000192 is an abundant number, since it is smaller than the sum of its proper divisors (1228462964).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1213000192 is an equidigital number, since it uses as much as digits as its factorization.
1213000192 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17448 (or 17432 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 19.
The square root of 1213000192 is about 34828.1522909269. The cubic root of 1213000192 is about 1066.4822292219.
The spelling of 1213000192 in words is "one billion, two hundred thirteen million, one hundred ninety-two", and thus it is an aban number.
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