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47031713 = 179262747
BaseRepresentation
bin1011001101101…
…0010110100001
310021111110101022
42303122112201
544020003323
64400015225
71110522461
oct263322641
9107443338
1047031713
1124603693
1213901515
139989321
146363ba1
1541e04c8
hex2cda5a1

47031713 has 4 divisors (see below), whose sum is σ = 47294640. Its totient is φ = 46768788.

The previous prime is 47031703. The next prime is 47031731. The reversal of 47031713 is 31713074.

47031713 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 a cyclic number.

It is not a de Polignac number, because 47031713 - 24 = 47031697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47031703) 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, 131195 + ... + 131552.

It is an arithmetic number, because the mean of its divisors is an integer number (11823660).

Almost surely, 247031713 is an apocalyptic number.

It is an amenable number.

47031713 is a deficient number, since it is larger than the sum of its proper divisors (262927).

47031713 is a wasteful number, since it uses less digits than its factorization.

47031713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262926.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 47031713 is about 6857.9671186147. The cubic root of 47031713 is about 360.9637576382.

Adding to 47031713 its reverse (31713074), we get a palindrome (78744787).

The spelling of 47031713 in words is "forty-seven million, thirty-one thousand, seven hundred thirteen".

Divisors: 1 179 262747 47031713