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12452117 = 44927733
BaseRepresentation
bin101111100000…
…000100010101
3212102122002112
4233200010111
511141431432
61122520405
7210561356
oct57400425
925378075
1012452117
117035507
124206105
13276ca22
141921d2d
15115e7b2
hexbe0115

12452117 has 4 divisors (see below), whose sum is σ = 12480300. Its totient is φ = 12423936.

The previous prime is 12452101. The next prime is 12452123. The reversal of 12452117 is 71125421.

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 4977361 + 7474756 = 2231^2 + 2734^2 .

It is a cyclic number.

It is not a de Polignac number, because 12452117 - 24 = 12452101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12452092 and 12452101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12452137) 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, 13418 + ... + 14315.

It is an arithmetic number, because the mean of its divisors is an integer number (3120075).

Almost surely, 212452117 is an apocalyptic number.

It is an amenable number.

12452117 is a deficient number, since it is larger than the sum of its proper divisors (28183).

12452117 is an equidigital number, since it uses as much as digits as its factorization.

12452117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28182.

The product of its digits is 560, while the sum is 23.

The square root of 12452117 is about 3528.7557297155. The cubic root of 12452117 is about 231.7827248883.

Adding to 12452117 its reverse (71125421), we get a palindrome (83577538).

The spelling of 12452117 in words is "twelve million, four hundred fifty-two thousand, one hundred seventeen".

Divisors: 1 449 27733 12452117