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12303101 = 113108877
BaseRepresentation
bin101110111011…
…101011111101
3212011001200102
4232323223331
511122144401
61115410445
7206401046
oct56735375
925131612
1012303101
116a43558
124153a25
132719c55
1418c38cd
15113056b
hexbbbafd

12303101 has 4 divisors (see below), whose sum is σ = 12412092. Its totient is φ = 12194112.

The previous prime is 12303073. The next prime is 12303103. The reversal of 12303101 is 10130321.

12303101 = T409 + T410 + ... + T521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5067001 + 7236100 = 2251^2 + 2690^2 .

It is a cyclic number.

It is not a de Polignac number, because 12303101 - 26 = 12303037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303103) 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, 54326 + ... + 54551.

It is an arithmetic number, because the mean of its divisors is an integer number (3103023).

Almost surely, 212303101 is an apocalyptic number.

It is an amenable number.

12303101 is a deficient number, since it is larger than the sum of its proper divisors (108991).

12303101 is a wasteful number, since it uses less digits than its factorization.

12303101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108990.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 12303101 is about 3507.5776541653. The cubic root of 12303101 is about 230.8544212453.

Adding to 12303101 its reverse (10130321), we get a palindrome (22433422).

The spelling of 12303101 in words is "twelve million, three hundred three thousand, one hundred one".

Divisors: 1 113 108877 12303101