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12041913 = 3131312357
BaseRepresentation
bin101101111011…
…111010111001
3211122210101210
4231323322321
511040320123
61110033333
7204232422
oct55737271
924583353
1012041913
1168852a4
124048849
1326580c0
141856649
1510cce93
hexb7beb9

12041913 has 16 divisors (see below), whose sum is σ = 17430336. Its totient is φ = 7350720.

The previous prime is 12041893. The next prime is 12041921. The reversal of 12041913 is 31914021.

It is not a de Polignac number, because 12041913 - 29 = 12041401 is a prime.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 12041913.

It is not an unprimeable number, because it can be changed into a prime (12041923) 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 15 ways as a sum of consecutive naturals, for example, 3931 + ... + 6287.

It is an arithmetic number, because the mean of its divisors is an integer number (1089396).

Almost surely, 212041913 is an apocalyptic number.

12041913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12041913 is a deficient number, since it is larger than the sum of its proper divisors (5388423).

12041913 is a wasteful number, since it uses less digits than its factorization.

12041913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 12041913 is about 3470.1459623480. The cubic root of 12041913 is about 229.2090854958.

Adding to 12041913 its reverse (31914021), we get a palindrome (43955934).

The spelling of 12041913 in words is "twelve million, forty-one thousand, nine hundred thirteen".

Divisors: 1 3 13 39 131 393 1703 2357 5109 7071 30641 91923 308767 926301 4013971 12041913