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13042241 = 37352493
BaseRepresentation
bin110001110000…
…001001000001
3220112121120222
4301300021001
511314322431
61143312425
7215600012
oct61601101
926477528
1013042241
1173a8913
12444b715
132918504
141a37009
15122957b
hexc70241

13042241 has 4 divisors (see below), whose sum is σ = 13394772. Its totient is φ = 12689712.

The previous prime is 13042207. The next prime is 13042259. The reversal of 13042241 is 14224031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14224031 = 52327197.

It can be written as a sum of positive squares in 2 ways, for example, as 7263025 + 5779216 = 2695^2 + 2404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13042241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13042441) 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, 176210 + ... + 176283.

It is an arithmetic number, because the mean of its divisors is an integer number (3348693).

Almost surely, 213042241 is an apocalyptic number.

It is an amenable number.

13042241 is a deficient number, since it is larger than the sum of its proper divisors (352531).

13042241 is an equidigital number, since it uses as much as digits as its factorization.

13042241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352530.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 13042241 is about 3611.4042974998. The cubic root of 13042241 is about 235.3878670942.

Adding to 13042241 its reverse (14224031), we get a palindrome (27266272).

The spelling of 13042241 in words is "thirteen million, forty-two thousand, two hundred forty-one".

Divisors: 1 37 352493 13042241