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12041481 = 34013827
BaseRepresentation
bin101101111011…
…110100001001
3211122202210210
4231323310021
511040311411
61110031333
7204231234
oct55736411
924582723
1012041481
116884a41
124048549
132657b4a
14185641b
1510ccca6
hexb7bd09

12041481 has 4 divisors (see below), whose sum is σ = 16055312. Its totient is φ = 8027652.

The previous prime is 12041479. The next prime is 12041501. The reversal of 12041481 is 18414021.

It is a happy number.

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.

It is not a de Polignac number, because 12041481 - 21 = 12041479 is a prime.

It is a super-2 number, since 2×120414812 = 289994529346722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12041401) 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, 2006911 + ... + 2006916.

It is an arithmetic number, because the mean of its divisors is an integer number (4013828).

Almost surely, 212041481 is an apocalyptic number.

It is an amenable number.

12041481 is a deficient number, since it is larger than the sum of its proper divisors (4013831).

12041481 is an equidigital number, since it uses as much as digits as its factorization.

12041481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013830.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 12041481 is about 3470.0837165694. The cubic root of 12041481 is about 229.2063445274.

The spelling of 12041481 in words is "twelve million, forty-one thousand, four hundred eighty-one".

Divisors: 1 3 4013827 12041481