Search a number
-
+
248131073 = 832989531
BaseRepresentation
bin11101100101000…
…10111000000001
3122021220100211202
432302202320001
51002010143243
640342150545
76102036131
oct1662427001
9567810752
10248131073
11118077603
126b122455
133c539b28
1424d50ac1
1516bb54b8
hexeca2e01

248131073 has 4 divisors (see below), whose sum is σ = 251120688. Its totient is φ = 245141460.

The previous prime is 248131003. The next prime is 248131129. The reversal of 248131073 is 370131842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 370131842 = 2185065921.

It is a cyclic number.

It is not a de Polignac number, because 248131073 - 222 = 243936769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248131003) 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, 1494683 + ... + 1494848.

It is an arithmetic number, because the mean of its divisors is an integer number (62780172).

Almost surely, 2248131073 is an apocalyptic number.

It is an amenable number.

248131073 is a deficient number, since it is larger than the sum of its proper divisors (2989615).

248131073 is an equidigital number, since it uses as much as digits as its factorization.

248131073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989614.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 248131073 is about 15752.1767702118. The cubic root of 248131073 is about 628.3867965181.

The spelling of 248131073 in words is "two hundred forty-eight million, one hundred thirty-one thousand, seventy-three".

Divisors: 1 83 2989531 248131073