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12452231 = 112102911
BaseRepresentation
bin101111100000…
…000110000111
3212102122020202
4233200012013
511141432411
61122521115
7210561611
oct57400607
925378222
1012452231
117035600
12420619b
13276caac
141921db1
15115e83b
hexbe0187

12452231 has 6 divisors (see below), whose sum is σ = 13687296. Its totient is φ = 11320100.

The previous prime is 12452221. The next prime is 12452249. The reversal of 12452231 is 13225421.

It is a de Polignac number, because none of the positive numbers 2k-12452231 is a prime.

It is a super-2 number, since 2×124522312 = 310116113754722, 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 (12452221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51335 + ... + 51576.

It is an arithmetic number, because the mean of its divisors is an integer number (2281216).

Almost surely, 212452231 is an apocalyptic number.

12452231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12452231 is a deficient number, since it is larger than the sum of its proper divisors (1235065).

12452231 is a wasteful number, since it uses less digits than its factorization.

12452231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102933 (or 102922 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 12452231 is about 3528.7718826810. The cubic root of 12452231 is about 231.7834322151.

Adding to 12452231 its reverse (13225421), we get a palindrome (25677652).

The spelling of 12452231 in words is "twelve million, four hundred fifty-two thousand, two hundred thirty-one".

Divisors: 1 11 121 102911 1132021 12452231