Search a number
-
+
12380569 is a prime number
BaseRepresentation
bin101111001110…
…100110011001
3212021222221121
4233032212121
511132134234
61121205241
7210142645
oct57164631
925258847
1012380569
116a96783
124190821
1327462a6
141903c25
1511484b4
hexbce999

12380569 has 2 divisors, whose sum is σ = 12380570. Its totient is φ = 12380568.

The previous prime is 12380567. The next prime is 12380597. The reversal of 12380569 is 96508321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7907344 + 4473225 = 2812^2 + 2115^2 .

It is a cyclic number.

It is not a de Polignac number, because 12380569 - 21 = 12380567 is a prime.

It is a super-2 number, since 2×123805692 = 306556977527522, which contains 22 as substring.

Together with 12380567, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12380561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6190284 + 6190285.

It is an arithmetic number, because the mean of its divisors is an integer number (6190285).

Almost surely, 212380569 is an apocalyptic number.

It is an amenable number.

12380569 is a deficient number, since it is larger than the sum of its proper divisors (1).

12380569 is an equidigital number, since it uses as much as digits as its factorization.

12380569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 12380569 is about 3518.6032740279. The cubic root of 12380569 is about 231.3379423008.

The spelling of 12380569 in words is "twelve million, three hundred eighty thousand, five hundred sixty-nine".