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28010242 = 2131676451
BaseRepresentation
bin110101011011…
…0011100000010
31221201001211101
41222312130002
524132311432
62440205014
7460040341
oct152663402
957631741
1028010242
11148a1567
12946976a
135a59410
143a11b58
1526d44e7
hex1ab6702

28010242 has 16 divisors (see below), whose sum is σ = 45525312. Its totient is φ = 12848400.

The previous prime is 28010239. The next prime is 28010249. The reversal of 28010242 is 24201082.

It is not an unprimeable number, because it can be changed into a prime (28010249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117 + ... + 7567.

It is an arithmetic number, because the mean of its divisors is an integer number (2845332).

Almost surely, 228010242 is an apocalyptic number.

28010242 is a deficient number, since it is larger than the sum of its proper divisors (17515070).

28010242 is a wasteful number, since it uses less digits than its factorization.

28010242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6633.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 28010242 is about 5292.4703116787. The cubic root of 28010242 is about 303.6959173697.

The spelling of 28010242 in words is "twenty-eight million, ten thousand, two hundred forty-two".

Divisors: 1 2 13 26 167 334 2171 4342 6451 12902 83863 167726 1077317 2154634 14005121 28010242