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472832281 is a prime number
BaseRepresentation
bin11100001011101…
…101100100011001
31012221201100221201
4130023231210121
51432021113111
6114530234201
714501002525
oct3413554431
91187640851
10472832281
112229a0989
12112425961
1376c6231c
1446b22d85
152b79d6c1
hex1c2ed919

472832281 has 2 divisors, whose sum is σ = 472832282. Its totient is φ = 472832280.

The previous prime is 472832249. The next prime is 472832293. The reversal of 472832281 is 182238274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 428490000 + 44342281 = 20700^2 + 6659^2 .

It is a cyclic number.

It is not a de Polignac number, because 472832281 - 25 = 472832249 is a prime.

It is a super-2 number, since 2×4728322812 = 447140731911325922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 472832281.

It is not a weakly prime, because it can be changed into another prime (472836281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236416140 + 236416141.

It is an arithmetic number, because the mean of its divisors is an integer number (236416141).

Almost surely, 2472832281 is an apocalyptic number.

It is an amenable number.

472832281 is a deficient number, since it is larger than the sum of its proper divisors (1).

472832281 is an equidigital number, since it uses as much as digits as its factorization.

472832281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 37.

The square root of 472832281 is about 21744.7069651444. The cubic root of 472832281 is about 779.0566510281.

The spelling of 472832281 in words is "four hundred seventy-two million, eight hundred thirty-two thousand, two hundred eighty-one".