Search a number
-
+
227886972 = 223176118313
BaseRepresentation
bin11011001010101…
…00011101111100
3120212210212011020
431211110131330
5431314340342
634340224140
75435002335
oct1545243574
9525725136
10227886972
111076aa945
126439b050
133829c581
14223a128c
15150170ec
hexd95477c

227886972 has 48 divisors (see below), whose sum is σ = 572275872. Its totient is φ = 70318080.

The previous prime is 227886943. The next prime is 227887019. The reversal of 227886972 is 279688722.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3288 + ... + 21600.

It is an arithmetic number, because the mean of its divisors is an integer number (11922414).

Almost surely, 2227886972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227886972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286137936).

227886972 is an abundant number, since it is smaller than the sum of its proper divisors (344388900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

227886972 is a wasteful number, since it uses less digits than its factorization.

227886972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18398 (or 18396 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 227886972 is about 15095.9256754927. The cubic root of 227886972 is about 610.8105073010.

The spelling of 227886972 in words is "two hundred twenty-seven million, eight hundred eighty-six thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 17 34 51 61 68 102 122 183 204 244 366 732 1037 2074 3111 4148 6222 12444 18313 36626 54939 73252 109878 219756 311321 622642 933963 1117093 1245284 1867926 2234186 3351279 3735852 4468372 6702558 13405116 18990581 37981162 56971743 75962324 113943486 227886972