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12630205 = 57360863
BaseRepresentation
bin110000001011…
…100010111101
3212202200101101
4300023202331
511213131310
61130413101
7212232520
oct60134275
925680341
1012630205
117147295
124291191
132802ac3
14196abb7
15119743a
hexc0b8bd

12630205 has 8 divisors (see below), whose sum is σ = 17321472. Its totient is φ = 8660688.

The previous prime is 12630203. The next prime is 12630217. The reversal of 12630205 is 50203621.

It is a happy number.

12630205 is digitally balanced in base 2, base 3 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12630205 - 21 = 12630203 is a prime.

12630205 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12630203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180397 + ... + 180466.

It is an arithmetic number, because the mean of its divisors is an integer number (2165184).

Almost surely, 212630205 is an apocalyptic number.

It is an amenable number.

12630205 is a deficient number, since it is larger than the sum of its proper divisors (4691267).

12630205 is an equidigital number, since it uses as much as digits as its factorization.

12630205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360875.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12630205 is about 3553.8999704550. The cubic root of 12630205 is about 232.8824706431.

Adding to 12630205 its reverse (50203621), we get a palindrome (62833826).

The spelling of 12630205 in words is "twelve million, six hundred thirty thousand, two hundred five".

Divisors: 1 5 7 35 360863 1804315 2526041 12630205