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227286401 = 367761813
BaseRepresentation
bin11011000110000…
…01110110000001
3120211200100022212
431203001312001
5431141131101
634315311505
75426621366
oct1543016601
9524610285
10227286401
1110732a701
126414b595
133811c0c4
142228646d
1514e491bb
hexd8c1d81

227286401 has 4 divisors (see below), whose sum is σ = 227351892. Its totient is φ = 227220912.

The previous prime is 227286383. The next prime is 227286443. The reversal of 227286401 is 104682722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181710400 + 45576001 = 13480^2 + 6751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-227286401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (227288401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27230 + ... + 34583.

It is an arithmetic number, because the mean of its divisors is an integer number (56837973).

Almost surely, 2227286401 is an apocalyptic number.

It is an amenable number.

227286401 is a deficient number, since it is larger than the sum of its proper divisors (65491).

227286401 is an equidigital number, since it uses as much as digits as its factorization.

227286401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65490.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 227286401 is about 15076.0207282956. The cubic root of 227286401 is about 610.2734606565.

The spelling of 227286401 in words is "two hundred twenty-seven million, two hundred eighty-six thousand, four hundred one".

Divisors: 1 3677 61813 227286401