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12402041 = 19652739
BaseRepresentation
bin101111010011…
…110101111001
3212100002101212
4233103311321
511133331131
61121452505
7210262361
oct57236571
925302355
1012402041
117000923
1241a1135
132752cb2
14190b9a1
15114ea2b
hexbd3d79

12402041 has 4 divisors (see below), whose sum is σ = 13054800. Its totient is φ = 11749284.

The previous prime is 12402023. The next prime is 12402059. The reversal of 12402041 is 14020421.

12402041 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 14020421 = 101913759.

It is an interprime number because it is at equal distance from previous prime (12402023) and next prime (12402059).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12402041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12402011) 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, 326351 + ... + 326388.

It is an arithmetic number, because the mean of its divisors is an integer number (3263700).

Almost surely, 212402041 is an apocalyptic number.

It is an amenable number.

12402041 is a deficient number, since it is larger than the sum of its proper divisors (652759).

12402041 is an equidigital number, since it uses as much as digits as its factorization.

12402041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652758.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12402041 is about 3521.6531629336. The cubic root of 12402041 is about 231.4716038856.

Adding to 12402041 its reverse (14020421), we get a palindrome (26422462).

It can be divided in two parts, 1 and 2402041, that added together give a palindrome (2402042).

The spelling of 12402041 in words is "twelve million, four hundred two thousand, forty-one".

Divisors: 1 19 652739 12402041