Search a number
-
+
128748098 = 2284322643
BaseRepresentation
bin1111010110010…
…00101001000010
322222021002012002
413223020221002
5230424414343
620435304002
73122224613
oct753105102
9288232162
10128748098
1166747396
123714b002
132089aa0b
1413155c0a
15b4828b8
hex7ac8a42

128748098 has 8 divisors (see below), whose sum is σ = 193198608. Its totient is φ = 64348564.

The previous prime is 128748073. The next prime is 128748107. The reversal of 128748098 is 890847821.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5636 + ... + 17007.

It is an arithmetic number, because the mean of its divisors is an integer number (24149826).

Almost surely, 2128748098 is an apocalyptic number.

128748098 is a deficient number, since it is larger than the sum of its proper divisors (64450510).

128748098 is a wasteful number, since it uses less digits than its factorization.

128748098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25488.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 128748098 is about 11346.7219054668. The cubic root of 128748098 is about 504.9483304976.

The spelling of 128748098 in words is "one hundred twenty-eight million, seven hundred forty-eight thousand, ninety-eight".

Divisors: 1 2 2843 5686 22643 45286 64374049 128748098