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28414085 = 572347751
BaseRepresentation
bin110110001100…
…1000010000101
31222110120210112
41230121002011
524233222320
62453002405
7463341620
oct154310205
958416715
1028414085
1115047a17
129623405
135b6b18b
143ab8db7
152763ec5
hex1b19085

28414085 has 32 divisors (see below), whose sum is σ = 41582592. Its totient is φ = 18216000.

The previous prime is 28414081. The next prime is 28414093. The reversal of 28414085 is 58041482.

It is a happy number.

It is not a de Polignac number, because 28414085 - 22 = 28414081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28414081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37460 + ... + 38210.

It is an arithmetic number, because the mean of its divisors is an integer number (1299456).

Almost surely, 228414085 is an apocalyptic number.

It is an amenable number.

28414085 is a deficient number, since it is larger than the sum of its proper divisors (13168507).

28414085 is a wasteful number, since it uses less digits than its factorization.

28414085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 28414085 is about 5330.4863755571. The cubic root of 28414085 is about 305.1484899101.

The spelling of 28414085 in words is "twenty-eight million, four hundred fourteen thousand, eighty-five".

Divisors: 1 5 7 23 35 47 115 161 235 329 751 805 1081 1645 3755 5257 5405 7567 17273 26285 35297 37835 86365 120911 176485 247079 604555 811831 1235395 4059155 5682817 28414085