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227297942 = 2113648971
BaseRepresentation
bin11011000110001…
…00101010010110
3120211200221011022
431203010222112
5431142013232
634315441142
75430000134
oct1543045226
9524627138
10227297942
11107338343
12641561b2
1338124431
142228a754
1514e4c812
hexd8c4a96

227297942 has 4 divisors (see below), whose sum is σ = 340946916. Its totient is φ = 113648970.

The previous prime is 227297923. The next prime is 227297947. The reversal of 227297942 is 249792722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249792722 = 2124896361.

It is a junction number, because it is equal to n+sod(n) for n = 227297893 and 227297902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227297947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56824484 + ... + 56824487.

It is an arithmetic number, because the mean of its divisors is an integer number (85236729).

Almost surely, 2227297942 is an apocalyptic number.

227297942 is a deficient number, since it is larger than the sum of its proper divisors (113648974).

227297942 is a wasteful number, since it uses less digits than its factorization.

227297942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113648973.

The product of its digits is 254016, while the sum is 44.

The square root of 227297942 is about 15076.4034835898. The cubic root of 227297942 is about 610.2837898370.

The spelling of 227297942 in words is "two hundred twenty-seven million, two hundred ninety-seven thousand, nine hundred forty-two".

Divisors: 1 2 113648971 227297942