Base | Representation |
---|---|
bin | 1011111101011100110111… |
… | …1000100011100111011001 |
3 | 1201120011100102202112101011 |
4 | 2333113031320203213121 |
5 | 3210423403324021111 |
6 | 43545104214253521 |
7 | 2525036623414204 |
oct | 277271570434731 |
9 | 51504312675334 |
10 | 13150349048281 |
11 | 4210039232aa5 |
12 | 15847613572a1 |
13 | 7450c3649803 |
14 | 3366a1cb693b |
15 | 17c10dc13021 |
hex | bf5cde239d9 |
13150349048281 has 9 divisors (see below), whose sum is σ = 13747049428021. Its totient is φ = 12578514962332.
The previous prime is 13150349048273. The next prime is 13150349048363. The reversal of 13150349048281 is 18284094305131.
It is a happy number.
The square root of 13150349048281 is 3626341.
It is a perfect power (a square), and thus also a powerful number.
It is not a de Polignac number, because 13150349048281 - 23 = 13150349048273 is a prime.
It is a super-2 number, since 2×131503490482812 (a number of 27 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13150349048201) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 83327010 + ... + 83484676.
Almost surely, 213150349048281 is an apocalyptic number.
13150349048281 is the 3626341-st square number.
13150349048281 is the 1813171-st centered octagonal number.
It is an amenable number.
13150349048281 is a deficient number, since it is larger than the sum of its proper divisors (596700379740).
13150349048281 is an frugal number, since it uses more digits than its factorization.
13150349048281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 315380 (or 157690 counting only the distinct ones).
The product of its (nonzero) digits is 829440, while the sum is 49.
Multiplying 13150349048281 by its sum of digits (49), we get a square (644367103365769 = 253843872).
The spelling of 13150349048281 in words is "thirteen trillion, one hundred fifty billion, three hundred forty-nine million, forty-eight thousand, two hundred eighty-one".
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