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11230121 = 71984437
BaseRepresentation
bin101010110101…
…101110101001
3210010112211102
4222311232221
510333330441
61040411145
7164311610
oct52655651
923115742
1011230121
1163803a1
123916ab5
132432756
1416c4877
15ebc69b
hexab5ba9

11230121 has 8 divisors (see below), whose sum is σ = 13510080. Its totient is φ = 9119088.

The previous prime is 11230111. The next prime is 11230123. The reversal of 11230121 is 12103211.

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

It is not a de Polignac number, because 11230121 - 218 = 10967977 is a prime.

It is a super-2 number, since 2×112301212 = 252231235349282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11230123) 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, 42086 + ... + 42351.

It is an arithmetic number, because the mean of its divisors is an integer number (1688760).

Almost surely, 211230121 is an apocalyptic number.

It is an amenable number.

11230121 is a deficient number, since it is larger than the sum of its proper divisors (2279959).

11230121 is an equidigital number, since it uses as much as digits as its factorization.

11230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84463.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11230121 is about 3351.1372696444. The cubic root of 11230121 is about 223.9381804853.

Adding to 11230121 its reverse (12103211), we get a palindrome (23333332).

The spelling of 11230121 in words is "eleven million, two hundred thirty thousand, one hundred twenty-one".

Divisors: 1 7 19 133 84437 591059 1604303 11230121