Search a number
-
+
12104425381 is a prime number
BaseRepresentation
bin10110100010111101…
…01101111110100101
31011020120121112001011
423101132231332211
5144242213103011
65321035502221
7605646626626
oct132136557645
934216545034
1012104425381
1151516a5a44
1224198b7971
1311ab9976a9
1482b841a4d
154ac9eb621
hex2d17adfa5

12104425381 has 2 divisors, whose sum is σ = 12104425382. Its totient is φ = 12104425380.

The previous prime is 12104425373. The next prime is 12104425393. The reversal of 12104425381 is 18352440121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10979896225 + 1124529156 = 104785^2 + 33534^2 .

It is a cyclic number.

It is not a de Polignac number, because 12104425381 - 23 = 12104425373 is a prime.

It is a super-2 number, since 2×121044253812 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12104425181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052212690 + 6052212691.

It is an arithmetic number, because the mean of its divisors is an integer number (6052212691).

Almost surely, 212104425381 is an apocalyptic number.

It is an amenable number.

12104425381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12104425381 is an equidigital number, since it uses as much as digits as its factorization.

12104425381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

The spelling of 12104425381 in words is "twelve billion, one hundred four million, four hundred twenty-five thousand, three hundred eighty-one".