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12021193 = 17798951
BaseRepresentation
bin101101110110…
…110111001001
3211121201222101
4231312313021
511034134233
61105353401
7204115132
oct55666711
924551871
1012021193
116870778
124038861
13264b842
14184cc89
1510c6c7d
hexb76dc9

12021193 has 8 divisors (see below), whose sum is σ = 12890880. Its totient is φ = 11169600.

The previous prime is 12021187. The next prime is 12021259. The reversal of 12021193 is 39112021.

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 12021193 - 29 = 12020681 is a prime.

It is a super-2 number, since 2×120211932 = 289018162286498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12021193.

It is not an unprimeable number, because it can be changed into a prime (12021593) 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, 3133 + ... + 5818.

It is an arithmetic number, because the mean of its divisors is an integer number (1611360).

Almost surely, 212021193 is an apocalyptic number.

It is an amenable number.

12021193 is a deficient number, since it is larger than the sum of its proper divisors (869687).

12021193 is an equidigital number, since it uses as much as digits as its factorization.

12021193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9047.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 12021193 is about 3467.1592118044. The cubic root of 12021193 is about 229.0775466287.

The spelling of 12021193 in words is "twelve million, twenty-one thousand, one hundred ninety-three".

Divisors: 1 17 79 1343 8951 152167 707129 12021193