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11312089 = 17798423
BaseRepresentation
bin101011001001…
…101111011001
3210021201021021
4223021233121
510343441324
61042242441
7165102565
oct53115731
923251237
1011312089
116426a38
123956421
132460b59
1417066a5
15ed6ae4
hexac9bd9

11312089 has 8 divisors (see below), whose sum is σ = 12130560. Its totient is φ = 10510656.

The previous prime is 11312071. The next prime is 11312099. The reversal of 11312089 is 98021311.

11312089 is digitally balanced in base 3, because in such base 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 11312089 - 25 = 11312057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312009) 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, 2869 + ... + 5554.

It is an arithmetic number, because the mean of its divisors is an integer number (1516320).

Almost surely, 211312089 is an apocalyptic number.

It is an amenable number.

11312089 is a deficient number, since it is larger than the sum of its proper divisors (818471).

11312089 is an equidigital number, since it uses as much as digits as its factorization.

11312089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8519.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 11312089 is about 3363.3449124346. The cubic root of 11312089 is about 224.4816975074.

The spelling of 11312089 in words is "eleven million, three hundred twelve thousand, eighty-nine".

Divisors: 1 17 79 1343 8423 143191 665417 11312089