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12121053 = 37577193
BaseRepresentation
bin101110001111…
…001111011101
3211210210221220
4232033033131
511100333203
61111443553
7205012230
oct56171735
924723856
1012121053
1169297aa
1240865b9
132685129
141877417
1510e6653
hexb8f3dd

12121053 has 8 divisors (see below), whose sum is σ = 18470208. Its totient is φ = 6926304.

The previous prime is 12121009. The next prime is 12121061. The reversal of 12121053 is 35012121.

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

It is not a de Polignac number, because 12121053 - 26 = 12120989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121063) 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, 288576 + ... + 288617.

It is an arithmetic number, because the mean of its divisors is an integer number (2308776).

Almost surely, 212121053 is an apocalyptic number.

It is an amenable number.

12121053 is a deficient number, since it is larger than the sum of its proper divisors (6349155).

12121053 is an equidigital number, since it uses as much as digits as its factorization.

12121053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577203.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12121053 is about 3481.5302669947. The cubic root of 12121053 is about 229.7101136789.

Adding to 12121053 its reverse (35012121), we get a palindrome (47133174).

The spelling of 12121053 in words is "twelve million, one hundred twenty-one thousand, fifty-three".

Divisors: 1 3 7 21 577193 1731579 4040351 12121053