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27800227 = 713305497
BaseRepresentation
bin110101000001…
…1001010100011
31221022101202001
41222003022203
524104101402
62431504431
7455204140
oct152031243
957271661
1027800227
11147687a4
129388117
1359b4950
1439993c7
152692187
hex1a832a3

27800227 has 8 divisors (see below), whose sum is σ = 34215776. Its totient is φ = 21995712.

The previous prime is 27800207. The next prime is 27800239. The reversal of 27800227 is 72200872.

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

It is a cyclic number.

It is not a de Polignac number, because 27800227 - 27 = 27800099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27800195 and 27800204.

It is not an unprimeable number, because it can be changed into a prime (27800207) by changing a digit.

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, 152658 + ... + 152839.

It is an arithmetic number, because the mean of its divisors is an integer number (4276972).

Almost surely, 227800227 is an apocalyptic number.

27800227 is a deficient number, since it is larger than the sum of its proper divisors (6415549).

27800227 is a wasteful number, since it uses less digits than its factorization.

27800227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305517.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 27800227 is about 5272.5920570437. The cubic root of 27800227 is about 302.9349960581.

The spelling of 27800227 in words is "twenty-seven million, eight hundred thousand, two hundred twenty-seven".

Divisors: 1 7 13 91 305497 2138479 3971461 27800227