Search a number
-
+
12480997 is a prime number
BaseRepresentation
bin101111100111…
…000111100101
3212111002201011
4233213013211
511143342442
61123302221
7211041514
oct57470745
925432634
1012480997
117055181
12421a971
13277cc09
14192c67b
151168117
hexbe71e5

12480997 has 2 divisors, whose sum is σ = 12480998. Its totient is φ = 12480996.

The previous prime is 12480989. The next prime is 12481039. The reversal of 12480997 is 79908421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7667361 + 4813636 = 2769^2 + 2194^2 .

It is a cyclic number.

It is not a de Polignac number, because 12480997 - 23 = 12480989 is a prime.

It is a super-2 number, since 2×124809972 = 311550572228018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12480947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6240498 + 6240499.

It is an arithmetic number, because the mean of its divisors is an integer number (6240499).

Almost surely, 212480997 is an apocalyptic number.

It is an amenable number.

12480997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12480997 is an equidigital number, since it uses as much as digits as its factorization.

12480997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 12480997 is about 3532.8454537384. The cubic root of 12480997 is about 231.9617765506.

The spelling of 12480997 in words is "twelve million, four hundred eighty thousand, nine hundred ninety-seven".