Base | Representation |
---|---|
bin | 10111010101101110… |
… | …11010111100111110 |
3 | 1012100021000210100011 |
4 | 23222313122330332 |
5 | 201130231101304 |
6 | 5431212253434 |
7 | 622341026404 |
oct | 135267327476 |
9 | 35307023304 |
10 | 12530331454 |
11 | 5350055533 |
12 | 251847127a |
13 | 1248ca9714 |
14 | 86c22b474 |
15 | 4d50cac04 |
hex | 2eaddaf3e |
12530331454 has 8 divisors (see below), whose sum is σ = 18816689808. Its totient is φ = 6258101520.
The previous prime is 12530331433. The next prime is 12530331479. The reversal of 12530331454 is 45413303521.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
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 in 3 ways as a sum of consecutive naturals, for example, 3529887 + ... + 3533434.
It is an arithmetic number, because the mean of its divisors is an integer number (2352086226).
Almost surely, 212530331454 is an apocalyptic number.
12530331454 is a deficient number, since it is larger than the sum of its proper divisors (6286358354).
12530331454 is an equidigital number, since it uses as much as digits as its factorization.
12530331454 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7064210.
The product of its (nonzero) digits is 21600, while the sum is 31.
Adding to 12530331454 its reverse (45413303521), we get a palindrome (57943634975).
The spelling of 12530331454 in words is "twelve billion, five hundred thirty million, three hundred thirty-one thousand, four hundred fifty-four".
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