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28996318435 = 572713139767
BaseRepresentation
bin11011000000010100…
…001011010011100011
32202211210200121002211
4123000110023103203
5433341024142220
621153135422551
72044361432350
oct330024132343
982753617084
1028996318435
111132a736237
125752984a57
132971469296
14159101d627
15b4a96bb5a
hex6c050b4e3

28996318435 has 32 divisors (see below), whose sum is σ = 40044736512. Its totient is φ = 19744508160.

The previous prime is 28996318423. The next prime is 28996318451. The reversal of 28996318435 is 53481369982.

It is not a de Polignac number, because 28996318435 - 223 = 28987929827 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28996318435.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2963922 + ... + 2973688.

It is an arithmetic number, because the mean of its divisors is an integer number (1251398016).

Almost surely, 228996318435 is an apocalyptic number.

28996318435 is a deficient number, since it is larger than the sum of its proper divisors (11048418077).

28996318435 is a wasteful number, since it uses less digits than its factorization.

28996318435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10363.

The product of its digits is 11197440, while the sum is 58.

The spelling of 28996318435 in words is "twenty-eight billion, nine hundred ninety-six million, three hundred eighteen thousand, four hundred thirty-five".

Divisors: 1 5 7 35 271 313 1355 1565 1897 2191 9485 9767 10955 48835 68369 84823 341845 424115 593761 2646857 2968805 3057071 13234285 15285355 18527999 21399497 92639995 106997485 828466241 4142331205 5799263687 28996318435