Base | Representation |
---|---|
bin | 10111111111101110… |
… | …00001111010110110 |
3 | 1020020210210100222022 |
4 | 23333313001322312 |
5 | 202340413103304 |
6 | 5530153433142 |
7 | 634145605064 |
oct | 137767017266 |
9 | 36223710868 |
10 | 12882550454 |
11 | 5510955914 |
12 | 25b640b7b2 |
13 | 12a3c5b927 |
14 | 8a2d15034 |
15 | 505ea1ebe |
hex | 2ffdc1eb6 |
12882550454 has 4 divisors (see below), whose sum is σ = 19323825684. Its totient is φ = 6441275226.
The previous prime is 12882550453. The next prime is 12882550459. The reversal of 12882550454 is 45405528821.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45405528821 = 23 ⋅1974153427.
It is a super-2 number, since 2×128825504542 (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 (12882550451) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3220637612 + ... + 3220637615.
It is an arithmetic number, because the mean of its divisors is an integer number (4830956421).
Almost surely, 212882550454 is an apocalyptic number.
12882550454 is a deficient number, since it is larger than the sum of its proper divisors (6441275230).
12882550454 is an equidigital number, since it uses as much as digits as its factorization.
12882550454 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6441275229.
The product of its (nonzero) digits is 512000, while the sum is 44.
The spelling of 12882550454 in words is "twelve billion, eight hundred eighty-two million, five hundred fifty thousand, four hundred fifty-four".
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