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12730353 = 312733413
BaseRepresentation
bin110000100011…
…111111110001
3212221202202120
4300203333301
511224332403
61132504453
7213130506
oct60437761
925852676
1012730353
117205559
12431b129
13283956c
1419954ad
1511b6e53
hexc23ff1

12730353 has 8 divisors (see below), whose sum is σ = 17107968. Its totient is φ = 8419824.

The previous prime is 12730349. The next prime is 12730363. The reversal of 12730353 is 35303721.

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

It is not a de Polignac number, because 12730353 - 22 = 12730349 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12730303) 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, 16326 + ... + 17087.

It is an arithmetic number, because the mean of its divisors is an integer number (2138496).

Almost surely, 212730353 is an apocalyptic number.

It is an amenable number.

12730353 is a deficient number, since it is larger than the sum of its proper divisors (4377615).

12730353 is a wasteful number, since it uses less digits than its factorization.

12730353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33543.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 12730353 is about 3567.9620233405. The cubic root of 12730353 is about 233.4963783337.

The spelling of 12730353 in words is "twelve million, seven hundred thirty thousand, three hundred fifty-three".

Divisors: 1 3 127 381 33413 100239 4243451 12730353