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28841064 = 2337171673
BaseRepresentation
bin110111000000…
…1010001101000
32000021021111120
41232001101220
524340403224
62510055240
7500100510
oct156012150
960237446
1028841064
111530979a
1297aa520
135c8a625
143b8a840
1527ea779
hex1b81468

28841064 has 32 divisors (see below), whose sum is σ = 82403520. Its totient is φ = 8240256.

The previous prime is 28841047. The next prime is 28841077. The reversal of 28841064 is 46014882.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85669 + ... + 86004.

It is an arithmetic number, because the mean of its divisors is an integer number (2575110).

Almost surely, 228841064 is an apocalyptic number.

28841064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28841064 is an abundant number, since it is smaller than the sum of its proper divisors (53562456).

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

28841064 is a wasteful number, since it uses less digits than its factorization.

28841064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171689 (or 171685 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 28841064 is about 5370.3876955021. The cubic root of 28841064 is about 306.6693877095.

The spelling of 28841064 in words is "twenty-eight million, eight hundred forty-one thousand, sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 171673 343346 515019 686692 1030038 1201711 1373384 2060076 2403422 3605133 4120152 4806844 7210266 9613688 14420532 28841064