Search a number
-
+
47138713 = 450710459
BaseRepresentation
bin1011001111010…
…0011110011001
310021200220011021
42303310132121
544031414323
64402202441
71111446436
oct263643631
9107626137
1047138713
1124677016
1213953421
1399c5c3b
146390b8d
15421205d
hex2cf4799

47138713 has 4 divisors (see below), whose sum is σ = 47153680. Its totient is φ = 47123748.

The previous prime is 47138711. The next prime is 47138723. The reversal of 47138713 is 31783174.

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 47138713 - 21 = 47138711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47138711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723 + ... + 9736.

It is an arithmetic number, because the mean of its divisors is an integer number (11788420).

Almost surely, 247138713 is an apocalyptic number.

It is an amenable number.

47138713 is a deficient number, since it is larger than the sum of its proper divisors (14967).

47138713 is a wasteful number, since it uses less digits than its factorization.

47138713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14966.

The product of its digits is 14112, while the sum is 34.

The square root of 47138713 is about 6865.7638322331. The cubic root of 47138713 is about 361.2372884581.

The spelling of 47138713 in words is "forty-seven million, one hundred thirty-eight thousand, seven hundred thirteen".

Divisors: 1 4507 10459 47138713