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12452947 = 138531123
BaseRepresentation
bin101111100000…
…010001010011
3212102200020021
4233200101103
511141443242
61122524311
7210563653
oct57402123
925380207
1012452947
1170360a1
124206697
132770210
141922363
15115eb67
hexbe0453

12452947 has 8 divisors (see below), whose sum is σ = 13438544. Its totient is φ = 11471328.

The previous prime is 12452927. The next prime is 12452963. The reversal of 12452947 is 74925421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12452947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12452927) 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 7 ways as a sum of consecutive naturals, for example, 10528 + ... + 11650.

It is an arithmetic number, because the mean of its divisors is an integer number (1679818).

Almost surely, 212452947 is an apocalyptic number.

12452947 is a deficient number, since it is larger than the sum of its proper divisors (985597).

12452947 is a wasteful number, since it uses less digits than its factorization.

12452947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989.

The product of its digits is 20160, while the sum is 34.

The square root of 12452947 is about 3528.8733329492. The cubic root of 12452947 is about 231.7878746254.

The spelling of 12452947 in words is "twelve million, four hundred fifty-two thousand, nine hundred forty-seven".

Divisors: 1 13 853 1123 11089 14599 957919 12452947