Base | Representation |
---|---|
bin | 11000001011010111… |
… | …00111001011001000 |
3 | 1020111121120112020201 |
4 | 30011223213023020 |
5 | 203040414024431 |
6 | 5544003101544 |
7 | 636443024536 |
oct | 140553471310 |
9 | 36447515221 |
10 | 12980220616 |
11 | 5560aa5960 |
12 | 26230718b4 |
13 | 12bb267b1c |
14 | 8b1c9b156 |
15 | 50e846461 |
hex | 305ae72c8 |
12980220616 has 16 divisors (see below), whose sum is σ = 26550451440. Its totient is φ = 5900100240.
The previous prime is 12980220607. The next prime is 12980220641. The reversal of 12980220616 is 61602208921.
It is a super-2 number, since 2×129802206162 (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 3 ways as a sum of consecutive naturals, for example, 73751166 + ... + 73751341.
It is an arithmetic number, because the mean of its divisors is an integer number (1659403215).
Almost surely, 212980220616 is an apocalyptic number.
It is an amenable number.
12980220616 is an abundant number, since it is smaller than the sum of its proper divisors (13570230824).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12980220616 is a wasteful number, since it uses less digits than its factorization.
12980220616 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 147502524 (or 147502520 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 37.
The spelling of 12980220616 in words is "twelve billion, nine hundred eighty million, two hundred twenty thousand, six hundred sixteen".
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