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12305253 = 3231391283
BaseRepresentation
bin101110111100…
…001101100101
3212011011122010
4232330031211
511122232003
61115424433
7206410242
oct56741545
925134563
1012305253
116a45134
124155119
13271ac1c
1418c45c9
151131003
hexbbc365

12305253 has 16 divisors (see below), whose sum is σ = 17256960. Its totient is φ = 7784304.

The previous prime is 12305243. The next prime is 12305261. The reversal of 12305253 is 35250321.

It is not a de Polignac number, because 12305253 - 25 = 12305221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305213) 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, 8950 + ... + 10232.

It is an arithmetic number, because the mean of its divisors is an integer number (1078560).

Almost surely, 212305253 is an apocalyptic number.

It is an amenable number.

12305253 is a deficient number, since it is larger than the sum of its proper divisors (4951707).

12305253 is a wasteful number, since it uses less digits than its factorization.

12305253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 12305253 is about 3507.8844051650. The cubic root of 12305253 is about 230.8678804470.

Adding to 12305253 its reverse (35250321), we get a palindrome (47555574).

The spelling of 12305253 in words is "twelve million, three hundred five thousand, two hundred fifty-three".

Divisors: 1 3 23 69 139 417 1283 3197 3849 9591 29509 88527 178337 535011 4101751 12305253