Search a number
-
+
12683145 = 35412503
BaseRepresentation
bin110000011000…
…011110001001
3212212101000010
4300120132021
511221330040
61131502133
7212543046
oct60303611
925771003
1012683145
117183042
1242b7949
132820c27
1419821cd
1511a7e80
hexc18789

12683145 has 24 divisors (see below), whose sum is σ = 20841408. Its totient is φ = 6586240.

The previous prime is 12683137. The next prime is 12683183. The reversal of 12683145 is 54138621.

It is not a de Polignac number, because 12683145 - 23 = 12683137 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24964 + ... + 25466.

It is an arithmetic number, because the mean of its divisors is an integer number (868392).

Almost surely, 212683145 is an apocalyptic number.

12683145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12683145 is a deficient number, since it is larger than the sum of its proper divisors (8158263).

12683145 is an equidigital number, since it uses as much as digits as its factorization.

12683145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 552 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 12683145 is about 3561.3403375696. The cubic root of 12683145 is about 233.2073957585.

The spelling of 12683145 in words is "twelve million, six hundred eighty-three thousand, one hundred forty-five".

Divisors: 1 3 5 15 41 123 205 503 615 1509 1681 2515 5043 7545 8405 20623 25215 61869 103115 309345 845543 2536629 4227715 12683145