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12140413 = 97112503
BaseRepresentation
bin101110010011…
…111101111101
3211211210111221
4232103331331
511101443123
61112113341
7205122535
oct56237575
924753457
1012140413
1169422aa
124095851
132690b9c
1418804c5
1510ec25d
hexb93f7d

12140413 has 4 divisors (see below), whose sum is σ = 12153888. Its totient is φ = 12126940.

The previous prime is 12140353. The next prime is 12140419. The reversal of 12140413 is 31404121.

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: 31404121 = 74486303.

It is a cyclic number.

It is not a de Polignac number, because 12140413 - 221 = 10043261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140419) 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 3 ways as a sum of consecutive naturals, for example, 5281 + ... + 7222.

It is an arithmetic number, because the mean of its divisors is an integer number (3038472).

Almost surely, 212140413 is an apocalyptic number.

It is an amenable number.

12140413 is a deficient number, since it is larger than the sum of its proper divisors (13475).

12140413 is an equidigital number, since it uses as much as digits as its factorization.

12140413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13474.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12140413 is about 3484.3095442282. The cubic root of 12140413 is about 229.8323478937.

Adding to 12140413 its reverse (31404121), we get a palindrome (43544534).

The spelling of 12140413 in words is "twelve million, one hundred forty thousand, four hundred thirteen".

Divisors: 1 971 12503 12140413