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11212401 = 317219851
BaseRepresentation
bin101010110001…
…011001110001
3210002122112010
4222301121301
510332244101
61040153133
7164206134
oct52613161
923078463
1011212401
116369052
1239087a9
132427675
1416bc21b
15eb72d6
hexab1671

11212401 has 8 divisors (see below), whose sum is σ = 15829344. Its totient is φ = 7035200.

The previous prime is 11212363. The next prime is 11212427. The reversal of 11212401 is 10421211.

It is a happy number.

11212401 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11212401 - 210 = 11211377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11212001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109875 + ... + 109976.

It is an arithmetic number, because the mean of its divisors is an integer number (1978668).

Almost surely, 211212401 is an apocalyptic number.

It is an amenable number.

11212401 is a deficient number, since it is larger than the sum of its proper divisors (4616943).

11212401 is a wasteful number, since it uses less digits than its factorization.

11212401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219871.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 11212401 is about 3348.4923473110. The cubic root of 11212401 is about 223.8203345148.

Adding to 11212401 its reverse (10421211), we get a palindrome (21633612).

The spelling of 11212401 in words is "eleven million, two hundred twelve thousand, four hundred one".

Divisors: 1 3 17 51 219851 659553 3737467 11212401