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1233223081 is a prime number
BaseRepresentation
bin100100110000001…
…0111110110101001
310011221112020000221
41021200113312221
510011201114311
6322212130041
742363136366
oct11140276651
93157466027
101233223081
11583138832
122a5006921
131686574cc
14b9adb46d
15733ee671
hex49817da9

1233223081 has 2 divisors, whose sum is σ = 1233223082. Its totient is φ = 1233223080.

The previous prime is 1233223067. The next prime is 1233223087. The reversal of 1233223081 is 1803223321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1153281600 + 79941481 = 33960^2 + 8941^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233223081 - 27 = 1233222953 is a prime.

It is a super-2 number, since 2×12332230812 = 3041678335022265122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1233223087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616611540 + 616611541.

It is an arithmetic number, because the mean of its divisors is an integer number (616611541).

Almost surely, 21233223081 is an apocalyptic number.

It is an amenable number.

1233223081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233223081 is an equidigital number, since it uses as much as digits as its factorization.

1233223081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1233223081 is about 35117.2761045045. The cubic root of 1233223081 is about 1072.3763184750.

The spelling of 1233223081 in words is "one billion, two hundred thirty-three million, two hundred twenty-three thousand, eighty-one".