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12650761 is a prime number
BaseRepresentation
bin110000010000…
…100100001001
3212210201120201
4300100210021
511214311021
61131052201
7212346454
oct60204411
925721521
1012650761
117160782
1242a1061
13280c276
14197449b
15119d591
hexc10909

12650761 has 2 divisors, whose sum is σ = 12650762. Its totient is φ = 12650760.

The previous prime is 12650753. The next prime is 12650767. The reversal of 12650761 is 16705621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12645136 + 5625 = 3556^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 12650761 - 23 = 12650753 is a prime.

It is not a weakly prime, because it can be changed into another prime (12650767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6325380 + 6325381.

It is an arithmetic number, because the mean of its divisors is an integer number (6325381).

Almost surely, 212650761 is an apocalyptic number.

It is an amenable number.

12650761 is a deficient number, since it is larger than the sum of its proper divisors (1).

12650761 is an equidigital number, since it uses as much as digits as its factorization.

12650761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 12650761 is about 3556.7908288231. The cubic root of 12650761 is about 233.0087430024.

The spelling of 12650761 in words is "twelve million, six hundred fifty thousand, seven hundred sixty-one".