Search a number
-
+
12623897 = 1113432053
BaseRepresentation
bin110000001010…
…000000011001
3212202100201202
4300022000121
511212431042
61130323545
7212205236
oct60120031
925670652
1012623897
117142580
1242895b5
1327ccc80
14196878d
151195632
hexc0a019

12623897 has 16 divisors (see below), whose sum is σ = 15183168. Its totient is φ = 10342080.

The previous prime is 12623873. The next prime is 12623917. The reversal of 12623897 is 79832621.

It is a cyclic number.

It is not a de Polignac number, because 12623897 - 28 = 12623641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12623897.

It is not an unprimeable number, because it can be changed into a prime (12623837) 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 in 15 ways as a sum of consecutive naturals, for example, 5123 + ... + 7175.

It is an arithmetic number, because the mean of its divisors is an integer number (948948).

Almost surely, 212623897 is an apocalyptic number.

It is an amenable number.

12623897 is a deficient number, since it is larger than the sum of its proper divisors (2559271).

12623897 is a wasteful number, since it uses less digits than its factorization.

12623897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120.

The product of its digits is 36288, while the sum is 38.

The square root of 12623897 is about 3553.0123838793. The cubic root of 12623897 is about 232.8436940950.

The spelling of 12623897 in words is "twelve million, six hundred twenty-three thousand, eight hundred ninety-seven".

Divisors: 1 11 13 43 143 473 559 2053 6149 22583 26689 88279 293579 971069 1147627 12623897