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227028405 = 3515135227
BaseRepresentation
bin11011000100000…
…10110110110101
3120211012020102110
431202002312311
5431104402110
634310001233
75424465252
oct1542026665
9524166373
10227028405
1110717388a
1264046219
133805b846
142221a429
1514de7a20
hexd882db5

227028405 has 8 divisors (see below), whose sum is σ = 363245472. Its totient is φ = 121081808.

The previous prime is 227028391. The next prime is 227028463. The reversal of 227028405 is 504820722.

227028405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 227028405 - 220 = 225979829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7567599 + ... + 7567628.

It is an arithmetic number, because the mean of its divisors is an integer number (45405684).

Almost surely, 2227028405 is an apocalyptic number.

It is an amenable number.

227028405 is a deficient number, since it is larger than the sum of its proper divisors (136217067).

227028405 is a wasteful number, since it uses less digits than its factorization.

227028405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15135235.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 227028405 is about 15067.4617968655. The cubic root of 227028405 is about 610.0424632269.

The spelling of 227028405 in words is "two hundred twenty-seven million, twenty-eight thousand, four hundred five".

Divisors: 1 3 5 15 15135227 45405681 75676135 227028405