Search a number
-
+
47480439 = 317930989
BaseRepresentation
bin1011010100011…
…1111001110111
310022100020220210
42311013321313
544123333224
64413400503
71114401636
oct265077167
9108306823
1047480439
112488a836
1213a99133
139ab5646
14643d51d
15427d429
hex2d47e77

47480439 has 8 divisors (see below), whose sum is σ = 67031280. Its totient is φ = 29791616.

The previous prime is 47480431. The next prime is 47480443. The reversal of 47480439 is 93408474.

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

It is not a de Polignac number, because 47480439 - 23 = 47480431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47480397 and 47480406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47480431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465444 + ... + 465545.

It is an arithmetic number, because the mean of its divisors is an integer number (8378910).

Almost surely, 247480439 is an apocalyptic number.

47480439 is a deficient number, since it is larger than the sum of its proper divisors (19550841).

47480439 is a wasteful number, since it uses less digits than its factorization.

47480439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931009.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 47480439 is about 6890.6051258217. The cubic root of 47480439 is about 362.1081018786.

The spelling of 47480439 in words is "forty-seven million, four hundred eighty thousand, four hundred thirty-nine".

Divisors: 1 3 17 51 930989 2792967 15826813 47480439