Search a number
-
+
48723109 = 109447001
BaseRepresentation
bin1011100111011…
…1010010100101
310101200101112121
42321313102211
544433114414
64500145541
71131065611
oct271672245
9111611477
1048723109
1125559436
12143982b1
13a12c156
146684341
154426724
hex2e774a5

48723109 has 4 divisors (see below), whose sum is σ = 49170220. Its totient is φ = 48276000.

The previous prime is 48723089. The next prime is 48723113. The reversal of 48723109 is 90132784.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35070084 + 13653025 = 5922^2 + 3695^2 .

It is a cyclic number.

It is not a de Polignac number, because 48723109 - 223 = 40334501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48723119) 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, 223392 + ... + 223609.

It is an arithmetic number, because the mean of its divisors is an integer number (12292555).

Almost surely, 248723109 is an apocalyptic number.

It is an amenable number.

48723109 is a deficient number, since it is larger than the sum of its proper divisors (447111).

48723109 is a wasteful number, since it uses less digits than its factorization.

48723109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447110.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 48723109 is about 6980.1940517438. The cubic root of 48723109 is about 365.2399972868.

The spelling of 48723109 in words is "forty-eight million, seven hundred twenty-three thousand, one hundred nine".

Divisors: 1 109 447001 48723109