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12220053 = 34073351
BaseRepresentation
bin101110100111…
…011010010101
3211222211202120
4232213122111
511112020203
61113530153
7205603656
oct56473225
924884676
1012220053
11699711a
124113959
1326bb201
1418a152d
151115b53
hexba7695

12220053 has 4 divisors (see below), whose sum is σ = 16293408. Its totient is φ = 8146700.

The previous prime is 12220037. The next prime is 12220081. The reversal of 12220053 is 35002221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35002221 = 311667407.

It is a cyclic number.

It is not a de Polignac number, because 12220053 - 24 = 12220037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220003) 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, 2036673 + ... + 2036678.

It is an arithmetic number, because the mean of its divisors is an integer number (4073352).

Almost surely, 212220053 is an apocalyptic number.

It is an amenable number.

12220053 is a deficient number, since it is larger than the sum of its proper divisors (4073355).

12220053 is an equidigital number, since it uses as much as digits as its factorization.

12220053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073354.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 12220053 is about 3495.7192392983. The cubic root of 12220053 is about 230.3338126999. Note that the first 3 decimals are identical.

Adding to 12220053 its reverse (35002221), we get a palindrome (47222274).

The spelling of 12220053 in words is "twelve million, two hundred twenty thousand, fifty-three".

Divisors: 1 3 4073351 12220053