Search a number
-
+
47276489 = 135576529
BaseRepresentation
bin1011010001011…
…0000111001001
310021221220011002
42310112013021
544100321424
64405144345
71112562221
oct264260711
9107856132
1047276489
1124760587
12139bb0b5
139a43870
1463c9081
15423ccae
hex2d161c9

47276489 has 8 divisors (see below), whose sum is σ = 51012360. Its totient is φ = 43554816.

The previous prime is 47276483. The next prime is 47276497. The reversal of 47276489 is 98467274.

It can be written as a sum of positive squares in 4 ways, for example, as 3822025 + 43454464 = 1955^2 + 6592^2 .

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 47276489 - 28 = 47276233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47276483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3977 + ... + 10505.

It is an arithmetic number, because the mean of its divisors is an integer number (6376545).

Almost surely, 247276489 is an apocalyptic number.

It is an amenable number.

47276489 is a deficient number, since it is larger than the sum of its proper divisors (3735871).

47276489 is a wasteful number, since it uses less digits than its factorization.

47276489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7099.

The product of its digits is 677376, while the sum is 47.

The square root of 47276489 is about 6875.7900636945. The cubic root of 47276489 is about 361.5888849510.

The spelling of 47276489 in words is "forty-seven million, two hundred seventy-six thousand, four hundred eighty-nine".

Divisors: 1 13 557 6529 7241 84877 3636653 47276489