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1230323389 is a prime number
BaseRepresentation
bin100100101010101…
…0011111010111101
310011202001220101221
41021111103322331
510004430322024
6322030033341
742326401441
oct11125237275
93152056357
101230323389
11581538199
122a4048851
13167b80709
14b9584821
157302a3e4
hex49553ebd

1230323389 has 2 divisors, whose sum is σ = 1230323390. Its totient is φ = 1230323388.

The previous prime is 1230323377. The next prime is 1230323441. The reversal of 1230323389 is 9833230321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 887444100 + 342879289 = 29790^2 + 18517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230323389 - 27 = 1230323261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230323329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615161694 + 615161695.

It is an arithmetic number, because the mean of its divisors is an integer number (615161695).

Almost surely, 21230323389 is an apocalyptic number.

It is an amenable number.

1230323389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230323389 is an equidigital number, since it uses as much as digits as its factorization.

1230323389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 1230323389 is about 35075.9659738688. The cubic root of 1230323389 is about 1071.5351618205.

The spelling of 1230323389 in words is "one billion, two hundred thirty million, three hundred twenty-three thousand, three hundred eighty-nine".