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28984299 = 3109151587
BaseRepresentation
bin110111010010…
…0001111101011
32000112112222120
41232210033223
524404444144
62513122323
7501235221
oct156441753
960475876
1028984299
11153a7373
1298593a3
13600a896
143bc6b11
152827e19
hex1ba43eb

28984299 has 16 divisors (see below), whose sum is σ = 39325440. Its totient is φ = 18986400.

The previous prime is 28984271. The next prime is 28984309. The reversal of 28984299 is 99248982.

It is not a de Polignac number, because 28984299 - 219 = 28460011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28984229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49084 + ... + 49670.

It is an arithmetic number, because the mean of its divisors is an integer number (2457840).

Almost surely, 228984299 is an apocalyptic number.

28984299 is a deficient number, since it is larger than the sum of its proper divisors (10341141).

28984299 is a wasteful number, since it uses less digits than its factorization.

28984299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850.

The product of its digits is 746496, while the sum is 51.

The square root of 28984299 is about 5383.7068085103. The cubic root of 28984299 is about 307.1762260689.

It can be divided in two parts, 289842 and 99, that added together give a triangular number (289941 = T761).

The spelling of 28984299 in words is "twenty-eight million, nine hundred eighty-four thousand, two hundred ninety-nine".

Divisors: 1 3 109 151 327 453 587 1761 16459 49377 63983 88637 191949 265911 9661433 28984299