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104021 is a prime number
BaseRepresentation
bin11001011001010101
312021200122
4121121111
511312041
62121325
7612161
oct313125
9167618
10104021
1171175
1250245
1338468
1429ca1
1520c4b
hex19655

104021 has 2 divisors, whose sum is σ = 104022. Its totient is φ = 104020.

The previous prime is 104009. The next prime is 104033. The reversal of 104021 is 120401.

It is a balanced prime because it is at equal distance from previous prime (104009) and next prime (104033).

It can be written as a sum of positive squares in only one way, i.e., 96100 + 7921 = 310^2 + 89^2 .

It is an emirp because it is prime and its reverse (120401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-104021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52010 + 52011.

It is an arithmetic number, because the mean of its divisors is an integer number (52011).

2104021 is an apocalyptic number.

It is an amenable number.

104021 is a deficient number, since it is larger than the sum of its proper divisors (1).

104021 is an equidigital number, since it uses as much as digits as its factorization.

104021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 104021 is about 322.5228674063. The cubic root of 104021 is about 47.0298587996.

Adding to 104021 its reverse (120401), we get a palindrome (224422).

The spelling of 104021 in words is "one hundred four thousand, twenty-one", and thus it is an iban number.