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12770 = 251277
BaseRepresentation
bin11000111100010
3122111222
43013202
5402040
6135042
752142
oct30742
918458
1012770
11965a
127482
135a74
144922
153bb5
hex31e2

12770 has 8 divisors (see below), whose sum is σ = 23004. Its totient is φ = 5104.

The previous prime is 12763. The next prime is 12781. The reversal of 12770 is 7721.

It is a happy number.

12770 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 1132+1.

It can be written as a sum of positive squares in 2 ways, for example, as 12769 + 1 = 113^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

12770 is strictly pandigital in base 6.

It is a Curzon number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 629 + ... + 648.

212770 is an apocalyptic number.

12770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12770 is a deficient number, since it is larger than the sum of its proper divisors (10234).

12770 is a wasteful number, since it uses less digits than its factorization.

12770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284.

The product of its (nonzero) digits is 98, while the sum is 17.

The square root of 12770 is about 113.0044246921. The cubic root of 12770 is about 23.3738524988.

The spelling of 12770 in words is "twelve thousand, seven hundred seventy", and thus it is an iban number.

Divisors: 1 2 5 10 1277 2554 6385 12770