Search a number
-
+
47381761 = 77099547
BaseRepresentation
bin1011010010111…
…1110100000001
310022011020120001
42310233310001
544112204021
64411320001
71113511150
oct264576401
9108136501
1047381761
1124822689
1213a50001
139a7c75b
146415597
15425e091
hex2d2fd01

47381761 has 8 divisors (see below), whose sum is σ = 54232640. Its totient is φ = 40551408.

The previous prime is 47381753. The next prime is 47381767. The reversal of 47381761 is 16718374.

47381761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 47381761 - 23 = 47381753 is a prime.

It is a super-2 number, since 2×473817612 = 4490062550922242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47381761.

It is not an unprimeable number, because it can be changed into a prime (47381767) 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 7 ways as a sum of consecutive naturals, for example, 190 + ... + 9736.

It is an arithmetic number, because the mean of its divisors is an integer number (6779080).

Almost surely, 247381761 is an apocalyptic number.

It is an amenable number.

47381761 is a deficient number, since it is larger than the sum of its proper divisors (6850879).

47381761 is an equidigital number, since it uses as much as digits as its factorization.

47381761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10263.

The product of its digits is 28224, while the sum is 37.

The square root of 47381761 is about 6883.4410726031. The cubic root of 47381761 is about 361.8570729881.

The spelling of 47381761 in words is "forty-seven million, three hundred eighty-one thousand, seven hundred sixty-one".

Divisors: 1 7 709 4963 9547 66829 6768823 47381761