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27312385 = 523439541
BaseRepresentation
bin110100000110…
…0000100000001
31220101121112211
41220030010001
523442444020
62413222121
7451102642
oct150140401
956347484
1027312385
1114465221
129191941
135873899
1438ad6c9
1525e785a
hex1a0c101

27312385 has 16 divisors (see below), whose sum is σ = 34341120. Its totient is φ = 20813760.

The previous prime is 27312347. The next prime is 27312419. The reversal of 27312385 is 58321372.

It is not a de Polignac number, because 27312385 - 223 = 18923777 is a prime.

27312385 is a Rhonda number in base 10.

Its product of digits (10080) is a multiple of the sum of its prime divisors (1008).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50215 + ... + 50755.

It is an arithmetic number, because the mean of its divisors is an integer number (2146320).

Almost surely, 227312385 is an apocalyptic number.

It is an amenable number.

27312385 is a deficient number, since it is larger than the sum of its proper divisors (7028735).

27312385 is a wasteful number, since it uses less digits than its factorization.

27312385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008.

The product of its digits is 10080, while the sum is 31.

The square root of 27312385 is about 5226.1252376881. The cubic root of 27312385 is about 301.1525479220.

The spelling of 27312385 in words is "twenty-seven million, three hundred twelve thousand, three hundred eighty-five".

Divisors: 1 5 23 115 439 541 2195 2705 10097 12443 50485 62215 237499 1187495 5462477 27312385