Search a number
-
+
180222227 = 2337211777
BaseRepresentation
bin10101011110111…
…11100100010011
3110120010020102022
422233133210103
5332114102402
625514442055
74315602143
oct1257374423
9416106368
10180222227
1192804699
125043332b
132b451093
1419d14923
1510c4e2a2
hexabdf913

180222227 has 8 divisors (see below), whose sum is σ = 193141536. Its totient is φ = 167726592.

The previous prime is 180222221. The next prime is 180222233. The reversal of 180222227 is 722222081.

It is an interprime number because it is at equal distance from previous prime (180222221) and next prime (180222233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 180222227 - 220 = 179173651 is a prime.

It is a super-2 number, since 2×1802222272 = 64960102209679058, 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 = 180222196 and 180222205.

It is not an unprimeable number, because it can be changed into a prime (180222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105038 + ... + 106739.

It is an arithmetic number, because the mean of its divisors is an integer number (24142692).

Almost surely, 2180222227 is an apocalyptic number.

180222227 is a deficient number, since it is larger than the sum of its proper divisors (12919309).

180222227 is a wasteful number, since it uses less digits than its factorization.

180222227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211837.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 180222227 is about 13424.6872216823. The cubic root of 180222227 is about 564.8538813415.

The spelling of 180222227 in words is "one hundred eighty million, two hundred twenty-two thousand, two hundred twenty-seven".

Divisors: 1 23 37 851 211777 4870871 7835749 180222227