Search a number
-
+
10103513243 = 73138404291
BaseRepresentation
bin10010110100011011…
…10110000010011011
3222002010112122121012
421122031312002123
5131142444410433
64350321204135
7505242305555
oct113215660233
928063478535
1010103513243
11431519604a
121b5b79064b
13c50291105
146bbbca4d5
153e2008848
hex25a37609b

10103513243 has 4 divisors (see below), whose sum is σ = 10241917608. Its totient is φ = 9965108880.

The previous prime is 10103513227. The next prime is 10103513257. The reversal of 10103513243 is 34231530101.

10103513243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34231530101 = 191801659479.

It is a cyclic number.

It is not a de Polignac number, because 10103513243 - 24 = 10103513227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10103516243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69202073 + ... + 69202218.

It is an arithmetic number, because the mean of its divisors is an integer number (2560479402).

Almost surely, 210103513243 is an apocalyptic number.

10103513243 is a deficient number, since it is larger than the sum of its proper divisors (138404365).

10103513243 is an equidigital number, since it uses as much as digits as its factorization.

10103513243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138404364.

The product of its (nonzero) digits is 1080, while the sum is 23.

The spelling of 10103513243 in words is "ten billion, one hundred three million, five hundred thirteen thousand, two hundred forty-three".

Divisors: 1 73 138404291 10103513243