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12053661 = 36165867
BaseRepresentation
bin101101111110…
…110010011101
3211200101111220
4231332302131
511041204121
61110203553
7204311604
oct55766235
924611456
1012053661
116893104
1240535b9
132660559
14185aa3b
1510d16c6
hexb7ec9d

12053661 has 8 divisors (see below), whose sum is σ = 16335264. Its totient is φ = 7903920.

The previous prime is 12053627. The next prime is 12053669. The reversal of 12053661 is 16635021.

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

It is not a de Polignac number, because 12053661 - 29 = 12053149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12053669) 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, 32751 + ... + 33116.

It is an arithmetic number, because the mean of its divisors is an integer number (2041908).

Almost surely, 212053661 is an apocalyptic number.

It is an amenable number.

12053661 is a deficient number, since it is larger than the sum of its proper divisors (4281603).

12053661 is an equidigital number, since it uses as much as digits as its factorization.

12053661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65931.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 12053661 is about 3471.8382738832. The cubic root of 12053661 is about 229.2835994908.

Adding to 12053661 its reverse (16635021), we get a palindrome (28688682).

The spelling of 12053661 in words is "twelve million, fifty-three thousand, six hundred sixty-one".

Divisors: 1 3 61 183 65867 197601 4017887 12053661