Search a number
-
+
47130868 = 22171936479
BaseRepresentation
bin1011001111001…
…0100011110100
310021200111101201
42303302203310
544031141433
64402102244
71111414531
oct263624364
9107614351
1047130868
1124671134
121394a984
1399c24b5
14638bd88
15420ea7d
hex2cf28f4

47130868 has 24 divisors (see below), whose sum is σ = 91929600. Its totient is φ = 21011328.

The previous prime is 47130821. The next prime is 47130883. The reversal of 47130868 is 86803174.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16948 + ... + 19531.

It is an arithmetic number, because the mean of its divisors is an integer number (3830400).

Almost surely, 247130868 is an apocalyptic number.

It is an amenable number.

47130868 is a deficient number, since it is larger than the sum of its proper divisors (44798732).

47130868 is a wasteful number, since it uses less digits than its factorization.

47130868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36519 (or 36517 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 47130868 is about 6865.1924954804. The cubic root of 47130868 is about 361.2172478618.

The spelling of 47130868 in words is "forty-seven million, one hundred thirty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 17 19 34 38 68 76 323 646 1292 36479 72958 145916 620143 693101 1240286 1386202 2480572 2772404 11782717 23565434 47130868