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12385245 = 351943457
BaseRepresentation
bin101111001111…
…101111011101
3212022020100210
4233033233131
511132311440
61121243033
7210162405
oct57175735
925266323
1012385245
116a9a244
124193479
132748462
141905805
151149a80
hexbcfbdd

12385245 has 16 divisors (see below), whose sum is σ = 20859840. Its totient is φ = 6257664.

The previous prime is 12385187. The next prime is 12385249. The reversal of 12385245 is 54258321.

It is not a de Polignac number, because 12385245 - 29 = 12384733 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12385249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21444 + ... + 22013.

It is an arithmetic number, because the mean of its divisors is an integer number (1303740).

Almost surely, 212385245 is an apocalyptic number.

12385245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12385245 is a deficient number, since it is larger than the sum of its proper divisors (8474595).

12385245 is a wasteful number, since it uses less digits than its factorization.

12385245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43484.

The product of its digits is 9600, while the sum is 30.

The square root of 12385245 is about 3519.2676795038. The cubic root of 12385245 is about 231.3670632042.

The spelling of 12385245 in words is "twelve million, three hundred eighty-five thousand, two hundred forty-five".

Divisors: 1 3 5 15 19 57 95 285 43457 130371 217285 651855 825683 2477049 4128415 12385245