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28574086 = 216978419
BaseRepresentation
bin110110100000…
…0000110000110
31222202201021111
41231000012012
524303332321
62500235234
7464606242
oct155000606
958681244
1028574086
1115147152
12969bb1a
135bc5c58
143b1b422
1527965e1
hex1b40186

28574086 has 8 divisors (see below), whose sum is σ = 42891480. Its totient is φ = 14276928.

The previous prime is 28574069. The next prime is 28574107. The reversal of 28574086 is 68047582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816 + ... + 7603.

It is an arithmetic number, because the mean of its divisors is an integer number (5361435).

Almost surely, 228574086 is an apocalyptic number.

28574086 is a deficient number, since it is larger than the sum of its proper divisors (14317394).

28574086 is a wasteful number, since it uses less digits than its factorization.

28574086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 28574086 is about 5345.4734121498. The cubic root of 28574086 is about 305.7201864901.

The spelling of 28574086 in words is "twenty-eight million, five hundred seventy-four thousand, eighty-six".

Divisors: 1 2 1697 3394 8419 16838 14287043 28574086