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227942438 = 2113971219
BaseRepresentation
bin11011001011000…
…10000000100110
3120212220200020112
431211202000212
5431323124223
634341333022
75435323133
oct1545420046
9525820215
10227942438
11107738589
1264407172
13382bb8a9
14223b758a
1515028778
hexd962026

227942438 has 4 divisors (see below), whose sum is σ = 341913660. Its totient is φ = 113971218.

The previous prime is 227942431. The next prime is 227942467. The reversal of 227942438 is 834249722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 834249722 = 2417124861.

It is a junction number, because it is equal to n+sod(n) for n = 227942395 and 227942404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227942431) 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 as a sum of consecutive naturals, namely, 56985608 + ... + 56985611.

It is an arithmetic number, because the mean of its divisors is an integer number (85478415).

Almost surely, 2227942438 is an apocalyptic number.

227942438 is a deficient number, since it is larger than the sum of its proper divisors (113971222).

227942438 is a wasteful number, since it uses less digits than its factorization.

227942438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113971221.

The product of its digits is 193536, while the sum is 41.

The square root of 227942438 is about 15097.7626819340. The cubic root of 227942438 is about 610.8600588646.

The spelling of 227942438 in words is "two hundred twenty-seven million, nine hundred forty-two thousand, four hundred thirty-eight".

Divisors: 1 2 113971219 227942438