Search a number
-
+
227731801 = 1121882081
BaseRepresentation
bin11011001001011…
…10100101011001
3120212111222022011
431210232211121
5431244404201
634333025521
75433455053
oct1544564531
9525458264
10227731801
11107604300
12643252a1
1338246a5b
14223608d3
1514ed6151
hexd92e959

227731801 has 6 divisors (see below), whose sum is σ = 250316906. Its totient is φ = 207028800.

The previous prime is 227731733. The next prime is 227731807. The reversal of 227731801 is 108137722.

It can be written as a sum of positive squares in only one way, i.e., 215649225 + 12082576 = 14685^2 + 3476^2 .

It is not a de Polignac number, because 227731801 - 213 = 227723609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227731807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 940920 + ... + 941161.

Almost surely, 2227731801 is an apocalyptic number.

It is an amenable number.

227731801 is a deficient number, since it is larger than the sum of its proper divisors (22585105).

227731801 is a wasteful number, since it uses less digits than its factorization.

227731801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882103 (or 1882092 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 227731801 is about 15090.7853009709. The cubic root of 227731801 is about 610.6718397314.

The spelling of 227731801 in words is "two hundred twenty-seven million, seven hundred thirty-one thousand, eight hundred one".

Divisors: 1 11 121 1882081 20702891 227731801