Search a number
-
+
47367409 = 227208667
BaseRepresentation
bin1011010010110…
…0010011110001
310022010111212111
42310230103301
544111224114
64411125321
71113421255
oct264542361
9108114774
1047367409
1124812921
1213a43841
139a7606b
146410265
154259bc4
hex2d2c4f1

47367409 has 4 divisors (see below), whose sum is σ = 47576304. Its totient is φ = 47158516.

The previous prime is 47367407. The next prime is 47367421. The reversal of 47367409 is 90476374.

47367409 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 47367409 - 21 = 47367407 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47367407) 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, 104107 + ... + 104560.

It is an arithmetic number, because the mean of its divisors is an integer number (11894076).

Almost surely, 247367409 is an apocalyptic number.

It is an amenable number.

47367409 is a deficient number, since it is larger than the sum of its proper divisors (208895).

47367409 is a wasteful number, since it uses less digits than its factorization.

47367409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208894.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 47367409 is about 6882.3984918050. The cubic root of 47367409 is about 361.8205336317.

The spelling of 47367409 in words is "forty-seven million, three hundred sixty-seven thousand, four hundred nine".

Divisors: 1 227 208667 47367409