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12852101 = 23558787
BaseRepresentation
bin110001000001…
…101110000101
3220011221202202
4301001232011
511242231401
61135244245
7214145453
oct61015605
926157682
1012852101
117288a79
124379685
13287cac2
1419c79d3
1511dd06b
hexc41b85

12852101 has 4 divisors (see below), whose sum is σ = 13410912. Its totient is φ = 12293292.

The previous prime is 12852071. The next prime is 12852109. The reversal of 12852101 is 10125821.

It is a happy number.

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: 10125821 = 47215443.

It is a cyclic number.

It is not a de Polignac number, because 12852101 - 210 = 12851077 is a prime.

It is a super-2 number, since 2×128521012 = 330353000228402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12852109) 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, 279371 + ... + 279416.

It is an arithmetic number, because the mean of its divisors is an integer number (3352728).

Almost surely, 212852101 is an apocalyptic number.

It is an amenable number.

12852101 is a deficient number, since it is larger than the sum of its proper divisors (558811).

12852101 is an equidigital number, since it uses as much as digits as its factorization.

12852101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558810.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 12852101 is about 3584.9827056766. The cubic root of 12852101 is about 234.2383732531.

Adding to 12852101 its reverse (10125821), we get a palindrome (22977922).

The spelling of 12852101 in words is "twelve million, eight hundred fifty-two thousand, one hundred one".

Divisors: 1 23 558787 12852101