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47112969 = 315704323
BaseRepresentation
bin1011001110111…
…0001100001001
310021122120211210
42303232030021
544030103334
64401443333
71111311411
oct263561411
9107576753
1047112969
1124659742
1213940549
1399b72c7
146385641
1542095e9
hex2cee309

47112969 has 4 divisors (see below), whose sum is σ = 62817296. Its totient is φ = 31408644.

The previous prime is 47112943. The next prime is 47113013. The reversal of 47112969 is 96921174.

47112969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 47112969 - 27 = 47112841 is a prime.

It is a super-2 number, since 2×471129692 = 4439263695989922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47112869) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7852159 + ... + 7852164.

It is an arithmetic number, because the mean of its divisors is an integer number (15704324).

Almost surely, 247112969 is an apocalyptic number.

It is an amenable number.

47112969 is a deficient number, since it is larger than the sum of its proper divisors (15704327).

47112969 is a wasteful number, since it uses less digits than its factorization.

47112969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15704326.

The product of its digits is 27216, while the sum is 39.

The square root of 47112969 is about 6863.8887665812. Note that the first 3 decimals coincide. The cubic root of 47112969 is about 361.1715152989.

The spelling of 47112969 in words is "forty-seven million, one hundred twelve thousand, nine hundred sixty-nine".

Divisors: 1 3 15704323 47112969