Base | Representation |
---|---|
bin | 11000000011011000… |
… | …10011111110100111 |
3 | 1020022221122100221020 |
4 | 30001230103332213 |
5 | 202421300422041 |
6 | 5533212422223 |
7 | 635001125112 |
oct | 140154237647 |
9 | 36287570836 |
10 | 12913295271 |
11 | 5527244958 |
12 | 2604777973 |
13 | 12aa434926 |
14 | 8a7039579 |
15 | 508a26866 |
hex | 301b13fa7 |
12913295271 has 4 divisors (see below), whose sum is σ = 17217727032. Its totient is φ = 8608863512.
The previous prime is 12913295221. The next prime is 12913295279. The reversal of 12913295271 is 17259231921.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17259231921 = 3 ⋅5753077307.
It is a cyclic number.
It is not a de Polignac number, because 12913295271 - 218 = 12913033127 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12913295279) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2152215876 + ... + 2152215881.
It is an arithmetic number, because the mean of its divisors is an integer number (4304431758).
Almost surely, 212913295271 is an apocalyptic number.
12913295271 is a deficient number, since it is larger than the sum of its proper divisors (4304431761).
12913295271 is an equidigital number, since it uses as much as digits as its factorization.
12913295271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4304431760.
The product of its digits is 68040, while the sum is 42.
The spelling of 12913295271 in words is "twelve billion, nine hundred thirteen million, two hundred ninety-five thousand, two hundred seventy-one".
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