Base | Representation |
---|---|
bin | 10111111001110100… |
… | …10010000101010000 |
3 | 1020010100200120112020 |
4 | 23330322102011100 |
5 | 202240231241230 |
6 | 5521225131440 |
7 | 633005210310 |
oct | 137472220520 |
9 | 36110616466 |
10 | 12833071440 |
11 | 5495a30572 |
12 | 25a1929b80 |
13 | 12969266c7 |
14 | 89a515440 |
15 | 50197b810 |
hex | 2fce92150 |
12833071440 has 80 divisors (see below), whose sum is σ = 45465744768. Its totient is φ = 2933273088.
The previous prime is 12833071423. The next prime is 12833071487. The reversal of 12833071440 is 4417033821.
It is a tau number, because it is divible by the number of its divisors (80).
It is a congruent number.
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, 3817687 + ... + 3821046.
Almost surely, 212833071440 is an apocalyptic number.
12833071440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12833071440 is an abundant number, since it is smaller than the sum of its proper divisors (32632673328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12833071440 is a wasteful number, since it uses less digits than its factorization.
12833071440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7638756 (or 7638750 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 33.
The spelling of 12833071440 in words is "twelve billion, eight hundred thirty-three million, seventy-one thousand, four hundred forty".
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