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11261213 = 79142547
BaseRepresentation
bin101010111101…
…010100011101
3210012010110222
4222331110131
510340324323
61041211125
7164501345
oct52752435
923163428
1011261213
1163a1797
123930aa5
132443952
1416d1d25
15ec69c8
hexabd51d

11261213 has 4 divisors (see below), whose sum is σ = 11403840. Its totient is φ = 11118588.

The previous prime is 11261203. The next prime is 11261219. The reversal of 11261213 is 31216211.

11261213 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.

It is a cyclic number.

It is not a de Polignac number, because 11261213 - 28 = 11260957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11261191 and 11261200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11261219) 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, 71195 + ... + 71352.

It is an arithmetic number, because the mean of its divisors is an integer number (2850960).

Almost surely, 211261213 is an apocalyptic number.

It is an amenable number.

11261213 is a deficient number, since it is larger than the sum of its proper divisors (142627).

11261213 is an equidigital number, since it uses as much as digits as its factorization.

11261213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142626.

The product of its digits is 72, while the sum is 17.

The square root of 11261213 is about 3355.7730852964. The cubic root of 11261213 is about 224.1446570401.

Adding to 11261213 its reverse (31216211), we get a palindrome (42477424).

The spelling of 11261213 in words is "eleven million, two hundred sixty-one thousand, two hundred thirteen".

Divisors: 1 79 142547 11261213