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12424745 = 518113729
BaseRepresentation
bin101111011001…
…011000101001
3212101020112202
4233121120221
511140042440
61122145545
7210415514
oct57313051
925336482
1012424745
117016993
1241b22b5
132760428
141915d7b
151156615
hexbd9629

12424745 has 8 divisors (see below), whose sum is σ = 14993160. Its totient is φ = 9884160.

The previous prime is 12424723. The next prime is 12424771. The reversal of 12424745 is 54742421.

It can be written as a sum of positive squares in 4 ways, for example, as 90601 + 12334144 = 301^2 + 3512^2 .

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

It is not a de Polignac number, because 12424745 - 212 = 12420649 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5960 + ... + 7769.

It is an arithmetic number, because the mean of its divisors is an integer number (1874145).

Almost surely, 212424745 is an apocalyptic number.

It is an amenable number.

12424745 is a deficient number, since it is larger than the sum of its proper divisors (2568415).

12424745 is a wasteful number, since it uses less digits than its factorization.

12424745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13915.

The product of its digits is 8960, while the sum is 29.

The square root of 12424745 is about 3524.8751750949. The cubic root of 12424745 is about 231.6127668774.

The spelling of 12424745 in words is "twelve million, four hundred twenty-four thousand, seven hundred forty-five".

Divisors: 1 5 181 905 13729 68645 2484949 12424745