Search a number
-
+
28704348048 = 2431104754133
BaseRepresentation
bin11010101110111010…
…011001011110010000
32202002110021222000210
4122232322121132100
5432241303114143
621104145444120
72034214634625
oct325672313620
982073258023
1028704348048
111119a9465a2
125691040640
132925b2023c
14156433a34c
15b2eee7033
hex6aee99790

28704348048 has 40 divisors (see below), whose sum is σ = 74160981568. Its totient is φ = 9567073152.

The previous prime is 28704347989. The next prime is 28704348083. The reversal of 28704348048 is 84084340782.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 28704347988 and 28704348006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503190 + ... + 557322.

Almost surely, 228704348048 is an apocalyptic number.

It is an amenable number.

28704348048 is an abundant number, since it is smaller than the sum of its proper divisors (45456633520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28704348048 is a wasteful number, since it uses less digits than its factorization.

28704348048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65191 (or 65185 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 48.

The spelling of 28704348048 in words is "twenty-eight billion, seven hundred four million, three hundred forty-eight thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 11047 22094 33141 44188 54133 66282 88376 108266 132564 162399 176752 216532 265128 324798 433064 530256 649596 866128 1299192 2598384 598007251 1196014502 1794021753 2392029004 3588043506 4784058008 7176087012 9568116016 14352174024 28704348048