Search a number
-
+
12920041 = 89179811
BaseRepresentation
bin110001010010…
…010011101001
3220022101222001
4301102103221
511301420131
61140531001
7214550521
oct61222351
926271861
1012920041
117325022
1243b0a61
1328a49c4
141a04681
151203261
hexc524e9

12920041 has 8 divisors (see below), whose sum is σ = 13154400. Its totient is φ = 12687840.

The previous prime is 12920023. The next prime is 12920071. The reversal of 12920041 is 14002921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12920041 - 25 = 12920009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12920071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15526 + ... + 16336.

It is an arithmetic number, because the mean of its divisors is an integer number (1644300).

Almost surely, 212920041 is an apocalyptic number.

It is an amenable number.

12920041 is a deficient number, since it is larger than the sum of its proper divisors (234359).

12920041 is an equidigital number, since it uses as much as digits as its factorization.

12920041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12920041 is about 3594.4458543703. The cubic root of 12920041 is about 234.6503991374.

Adding to 12920041 its reverse (14002921), we get a palindrome (26922962).

The spelling of 12920041 in words is "twelve million, nine hundred twenty thousand, forty-one".

Divisors: 1 89 179 811 15931 72179 145169 12920041