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28984792 = 233623099
BaseRepresentation
bin110111010010…
…0010111011000
32000112120122211
41232210113120
524410003132
62513124504
7501236524
oct156442730
960476584
1028984792
11153a7781
129859734
13600ab85
143bc6d84
152828147
hex1ba45d8

28984792 has 8 divisors (see below), whose sum is σ = 54346500. Its totient is φ = 14492392.

The previous prime is 28984789. The next prime is 28984831. The reversal of 28984792 is 29748982.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1811542 + ... + 1811557.

Almost surely, 228984792 is an apocalyptic number.

It is an amenable number.

28984792 is a deficient number, since it is larger than the sum of its proper divisors (25361708).

28984792 is a wasteful number, since it uses less digits than its factorization.

28984792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623105 (or 3623101 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 28984792 is about 5383.7525946128. The cubic root of 28984792 is about 307.1779676672.

The spelling of 28984792 in words is "twenty-eight million, nine hundred eighty-four thousand, seven hundred ninety-two".

Divisors: 1 2 4 8 3623099 7246198 14492396 28984792