Base | Representation |
---|---|
bin | 10111100001110001… |
… | …10001110100000011 |
3 | 1012121022010002110110 |
4 | 23300320301310003 |
5 | 201332111204111 |
6 | 5445221402403 |
7 | 625005464562 |
oct | 136070616403 |
9 | 35538102413 |
10 | 12631350531 |
11 | 53a2082678 |
12 | 2546269403 |
13 | 1263bb9017 |
14 | 87b805bd9 |
15 | 4dddd25a6 |
hex | 2f0e31d03 |
12631350531 has 8 divisors (see below), whose sum is σ = 16974413824. Its totient is φ = 8354593800.
The previous prime is 12631350517. The next prime is 12631350539. The reversal of 12631350531 is 13505313621.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12631350531 - 26 = 12631350467 is a prime.
It is a super-2 number, since 2×126313505312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12631350539) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16576195 + ... + 16576956.
It is an arithmetic number, because the mean of its divisors is an integer number (2121801728).
Almost surely, 212631350531 is an apocalyptic number.
12631350531 is a deficient number, since it is larger than the sum of its proper divisors (4343063293).
12631350531 is a wasteful number, since it uses less digits than its factorization.
12631350531 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33153281.
The product of its (nonzero) digits is 8100, while the sum is 30.
The spelling of 12631350531 in words is "twelve billion, six hundred thirty-one million, three hundred fifty thousand, five hundred thirty-one".
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