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1230013 is a prime number
BaseRepresentation
bin100101100010010111101
32022111021001
410230102331
5303330023
642210301
713312021
oct4542275
92274231
101230013
11770144
124b3991
13340b25
14240381
151946ad
hex12c4bd

1230013 has 2 divisors, whose sum is σ = 1230014. Its totient is φ = 1230012.

The previous prime is 1229999. The next prime is 1230023. The reversal of 1230013 is 3100321.

It is an a-pointer prime, because the next prime (1230023) can be obtained adding 1230013 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 956484 + 273529 = 978^2 + 523^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230013 - 25 = 1229981 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615006 + 615007.

It is an arithmetic number, because the mean of its divisors is an integer number (615007).

21230013 is an apocalyptic number.

It is an amenable number.

1230013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230013 is an equidigital number, since it uses as much as digits as its factorization.

1230013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1230013 is about 1109.0595114781. The cubic root of 1230013 is about 107.1445044403.

Adding to 1230013 its reverse (3100321), we get a palindrome (4330334).

The spelling of 1230013 in words is "one million, two hundred thirty thousand, thirteen".