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227700047 = 1911984213
BaseRepresentation
bin11011001001001…
…10110101001111
3120212110100202002
431210212311033
5431242400142
634332222515
75433263351
oct1544466517
9525410662
10227700047
11107592463
126430aa3b
1338235473
14223530d1
1514ecba32
hexd926d4f

227700047 has 4 divisors (see below), whose sum is σ = 239684280. Its totient is φ = 215715816.

The previous prime is 227700037. The next prime is 227700071. The reversal of 227700047 is 740007722.

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

It is not a de Polignac number, because 227700047 - 220 = 226651471 is a prime.

It is a super-2 number, since 2×2277000472 = 103694622807604418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 227699992 and 227700019.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227700037) 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, 5992088 + ... + 5992125.

It is an arithmetic number, because the mean of its divisors is an integer number (59921070).

Almost surely, 2227700047 is an apocalyptic number.

227700047 is a deficient number, since it is larger than the sum of its proper divisors (11984233).

227700047 is a wasteful number, since it uses less digits than its factorization.

227700047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11984232.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 227700047 is about 15089.7331653015. The cubic root of 227700047 is about 610.6434552094.

Adding to 227700047 its reverse (740007722), we get a palindrome (967707769).

The spelling of 227700047 in words is "two hundred twenty-seven million, seven hundred thousand, forty-seven".

Divisors: 1 19 11984213 227700047