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28541274 = 2342111299
BaseRepresentation
bin110110011100…
…0000101011010
31222201001021020
41230320011122
524301310044
62455423310
7464411466
oct154700532
958631236
1028541274
1115124533
129684b36
135bb4038
143b0d4a6
15278ba19
hex1b3815a

28541274 has 16 divisors (see below), whose sum is σ = 57223200. Its totient is φ = 9490320.

The previous prime is 28541273. The next prime is 28541291. The reversal of 28541274 is 47214582.

It is not an unprimeable number, because it can be changed into a prime (28541273) 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, 3124 + ... + 8175.

It is an arithmetic number, because the mean of its divisors is an integer number (3576450).

Almost surely, 228541274 is an apocalyptic number.

28541274 is an abundant number, since it is smaller than the sum of its proper divisors (28681926).

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

28541274 is a wasteful number, since it uses less digits than its factorization.

28541274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11725.

The product of its digits is 17920, while the sum is 33.

The square root of 28541274 is about 5342.4033917330. The cubic root of 28541274 is about 305.6031208278.

The spelling of 28541274 in words is "twenty-eight million, five hundred forty-one thousand, two hundred seventy-four".

Divisors: 1 2 3 6 421 842 1263 2526 11299 22598 33897 67794 4756879 9513758 14270637 28541274