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12203101 = 23951059
BaseRepresentation
bin101110100011…
…010001011101
3211221222111201
4232203101131
511110444401
61113315501
7205503361
oct56432135
924858451
1012203101
116985409
124105b91
1326b3591
1418992a1
151110b01
hexba345d

12203101 has 4 divisors (see below), whose sum is σ = 12254400. Its totient is φ = 12151804.

The previous prime is 12203089. The next prime is 12203137. The reversal of 12203101 is 10130221.

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: 10130221 = 22345427.

It is a cyclic number.

It is not a de Polignac number, because 12203101 - 25 = 12203069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25291 + ... + 25768.

It is an arithmetic number, because the mean of its divisors is an integer number (3063600).

Almost surely, 212203101 is an apocalyptic number.

It is an amenable number.

12203101 is a deficient number, since it is larger than the sum of its proper divisors (51299).

12203101 is an equidigital number, since it uses as much as digits as its factorization.

12203101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51298.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 12203101 is about 3493.2937179688. The cubic root of 12203101 is about 230.2272549046.

Adding to 12203101 its reverse (10130221), we get a palindrome (22333322).

The spelling of 12203101 in words is "twelve million, two hundred three thousand, one hundred one".

Divisors: 1 239 51059 12203101