Base | Representation |
---|---|
bin | 11000000111100101… |
… | …00100001100110100 |
3 | 1020102101212101200010 |
4 | 30003302210030310 |
5 | 203004303122022 |
6 | 5540511020220 |
7 | 635606224554 |
oct | 140362441464 |
9 | 36371771603 |
10 | 12948489012 |
11 | 55450a2498 |
12 | 261450a670 |
13 | 12b4807924 |
14 | 8ab99b164 |
15 | 50bb7950c |
hex | 303ca4334 |
12948489012 has 48 divisors (see below), whose sum is σ = 30514724352. Its totient is φ = 4273131360.
The previous prime is 12948489007. The next prime is 12948489013. The reversal of 12948489012 is 21098484921.
It is a super-2 number, since 2×129484890122 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12948489013) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3956937 + ... + 3960207.
It is an arithmetic number, because the mean of its divisors is an integer number (635723424).
Almost surely, 212948489012 is an apocalyptic number.
12948489012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
12948489012 is an abundant number, since it is smaller than the sum of its proper divisors (17566235340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12948489012 is a wasteful number, since it uses less digits than its factorization.
12948489012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6468 (or 6466 counting only the distinct ones).
The product of its (nonzero) digits is 331776, while the sum is 48.
The spelling of 12948489012 in words is "twelve billion, nine hundred forty-eight million, four hundred eighty-nine thousand, twelve".
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