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232828181 is a prime number
BaseRepresentation
bin11011110000010…
…10110100010101
3121020002220012222
431320022310111
5434101000211
635034152125
75525002235
oct1570126425
9536086188
10232828181
1110a475293
1265b82645
133930c671
1422cc9cc5
15156911db
hexde0ad15

232828181 has 2 divisors, whose sum is σ = 232828182. Its totient is φ = 232828180.

The previous prime is 232828159. The next prime is 232828199. The reversal of 232828181 is 181828232.

232828181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220047556 + 12780625 = 14834^2 + 3575^2 .

It is a cyclic number.

It is not a de Polignac number, because 232828181 - 222 = 228633877 is a prime.

It is a super-2 number, since 2×2328281812 = 108417923735537522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232828111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116414090 + 116414091.

It is an arithmetic number, because the mean of its divisors is an integer number (116414091).

Almost surely, 2232828181 is an apocalyptic number.

It is an amenable number.

232828181 is a deficient number, since it is larger than the sum of its proper divisors (1).

232828181 is an equidigital number, since it uses as much as digits as its factorization.

232828181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 35.

The square root of 232828181 is about 15258.7083660446. The cubic root of 232828181 is about 615.1936561573.

The spelling of 232828181 in words is "two hundred thirty-two million, eight hundred twenty-eight thousand, one hundred eighty-one".