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48730809 = 316243603
BaseRepresentation
bin1011100111100…
…1001010111001
310101200210002210
42321321022321
544433341214
64500245333
71131130221
oct271711271
9111623083
1048730809
11255641a6
12143a0849
13a1327ca
146687081
154428b59
hex2e792b9

48730809 has 4 divisors (see below), whose sum is σ = 64974416. Its totient is φ = 32487204.

The previous prime is 48730807. The next prime is 48730819. The reversal of 48730809 is 90803784.

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 not a de Polignac number, because 48730809 - 21 = 48730807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48730807) 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, 8121799 + ... + 8121804.

It is an arithmetic number, because the mean of its divisors is an integer number (16243604).

Almost surely, 248730809 is an apocalyptic number.

It is an amenable number.

48730809 is a deficient number, since it is larger than the sum of its proper divisors (16243607).

48730809 is a wasteful number, since it uses less digits than its factorization.

48730809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16243606.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 48730809 is about 6980.7455905512. The cubic root of 48730809 is about 365.2592366163.

The spelling of 48730809 in words is "forty-eight million, seven hundred thirty thousand, eight hundred nine".

Divisors: 1 3 16243603 48730809