Search a number
-
+
47768141 = 431110887
BaseRepresentation
bin1011011000111…
…0001001001101
310022212212120102
42312032021031
544212040031
64423500445
71120010501
oct266161115
9108785512
1047768141
1124a66a03
1213bb7725
139b86595
1464b6301
1542d87cb
hex2d8e24d

47768141 has 4 divisors (see below), whose sum is σ = 48879072. Its totient is φ = 46657212.

The previous prime is 47768137. The next prime is 47768153. The reversal of 47768141 is 14186774.

47768141 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 47768141 - 22 = 47768137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47768095 and 47768104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47768341) 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, 555401 + ... + 555486.

It is an arithmetic number, because the mean of its divisors is an integer number (12219768).

Almost surely, 247768141 is an apocalyptic number.

It is an amenable number.

47768141 is a deficient number, since it is larger than the sum of its proper divisors (1110931).

47768141 is a wasteful number, since it uses less digits than its factorization.

47768141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110930.

The product of its digits is 37632, while the sum is 38.

The square root of 47768141 is about 6911.4499925848. The cubic root of 47768141 is about 362.8380130611.

The spelling of 47768141 in words is "forty-seven million, seven hundred sixty-eight thousand, one hundred forty-one".

Divisors: 1 43 1110887 47768141