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12703253 = 25749429
BaseRepresentation
bin110000011101…
…011000010101
3212220101120212
4300131120111
511223001003
61132135205
7212655503
oct60353025
925811525
1012703253
117197162
124307505
13282a124
141989673
1511addd8
hexc1d615

12703253 has 4 divisors (see below), whose sum is σ = 12752940. Its totient is φ = 12653568.

The previous prime is 12703193. The next prime is 12703259. The reversal of 12703253 is 35230721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10804369 + 1898884 = 3287^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 12703253 - 212 = 12699157 is a prime.

It is a super-2 number, since 2×127032532 = 322745273564018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12703259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24458 + ... + 24971.

It is an arithmetic number, because the mean of its divisors is an integer number (3188235).

Almost surely, 212703253 is an apocalyptic number.

It is an amenable number.

12703253 is a deficient number, since it is larger than the sum of its proper divisors (49687).

12703253 is an equidigital number, since it uses as much as digits as its factorization.

12703253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49686.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 12703253 is about 3564.1623139245. The cubic root of 12703253 is about 233.3305738903.

Adding to 12703253 its reverse (35230721), we get a palindrome (47933974).

The spelling of 12703253 in words is "twelve million, seven hundred three thousand, two hundred fifty-three".

Divisors: 1 257 49429 12703253