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28354074 = 237675097
BaseRepresentation
bin110110000101…
…0011000011010
31222100112110220
41230022120122
524224312244
62451420510
7463001640
oct154123032
958315426
1028354074
1115006921
1295b4736
135b49a78
143aa1190
152751319
hex1b0a61a

28354074 has 16 divisors (see below), whose sum is σ = 64809408. Its totient is φ = 8101152.

The previous prime is 28354069. The next prime is 28354087. The reversal of 28354074 is 47045382.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337507 + ... + 337590.

It is an arithmetic number, because the mean of its divisors is an integer number (4050588).

Almost surely, 228354074 is an apocalyptic number.

28354074 is an abundant number, since it is smaller than the sum of its proper divisors (36455334).

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

28354074 is a wasteful number, since it uses less digits than its factorization.

28354074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675109.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 28354074 is about 5324.8543642057. The cubic root of 28354074 is about 304.9335123370.

The spelling of 28354074 in words is "twenty-eight million, three hundred fifty-four thousand, seventy-four".

Divisors: 1 2 3 6 7 14 21 42 675097 1350194 2025291 4050582 4725679 9451358 14177037 28354074