Base | Representation |
---|---|
bin | 11000001111010111… |
… | …10000001100100001 |
3 | 1020120221210010222002 |
4 | 30013223300030201 |
5 | 203123013441001 |
6 | 5551203053345 |
7 | 640331401601 |
oct | 140753601441 |
9 | 36527703862 |
10 | 13013812001 |
11 | 5578a59633 |
12 | 2632371255 |
13 | 12c51c9698 |
14 | 8b6522c01 |
15 | 51277e46b |
hex | 307af0321 |
13013812001 has 4 divisors (see below), whose sum is σ = 13779330372. Its totient is φ = 12248293632.
The previous prime is 13013811983. The next prime is 13013812043. The reversal of 13013812001 is 10021831031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10021831031 = 5477 ⋅1829803.
It can be written as a sum of positive squares in 2 ways, for example, as 8915891776 + 4097920225 = 94424^2 + 64015^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13013812001 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13013818001) 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, 382759160 + ... + 382759193.
It is an arithmetic number, because the mean of its divisors is an integer number (3444832593).
Almost surely, 213013812001 is an apocalyptic number.
It is an amenable number.
13013812001 is a deficient number, since it is larger than the sum of its proper divisors (765518371).
13013812001 is an equidigital number, since it uses as much as digits as its factorization.
13013812001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 765518370.
The product of its (nonzero) digits is 144, while the sum is 20.
The spelling of 13013812001 in words is "thirteen billion, thirteen million, eight hundred twelve thousand, one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •