Search a number
-
+
648209014 = 21719064971
BaseRepresentation
bin100110101000101…
…110001001110110
31200011201102121021
4212220232021312
52311420142024
6144153211354
722030454125
oct4650561166
91604642537
10648209014
11302996032
12161100b5a
13a43a7a3b
1462135abc
153bd91de4
hex26a2e276

648209014 has 8 divisors (see below), whose sum is σ = 1029508488. Its totient is φ = 305039520.

The previous prime is 648208993. The next prime is 648209033. The reversal of 648209014 is 410902846.

648209014 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 19064971 = 648209014 / (6 + 4 + 8 + 2 + 0 + 9 + 0 + 1 + 4).

It is a congruent number.

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, 9532452 + ... + 9532519.

It is an arithmetic number, because the mean of its divisors is an integer number (128688561).

Almost surely, 2648209014 is an apocalyptic number.

648209014 is a deficient number, since it is larger than the sum of its proper divisors (381299474).

648209014 is a wasteful number, since it uses less digits than its factorization.

648209014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19064990.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 648209014 is about 25459.9492144034. The cubic root of 648209014 is about 865.4427724148.

The spelling of 648209014 in words is "six hundred forty-eight million, two hundred nine thousand, fourteen".

Divisors: 1 2 17 34 19064971 38129942 324104507 648209014