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12630489 = 331313451
BaseRepresentation
bin110000001011…
…100111011001
3212202200202220
4300023213121
511213133424
61130414253
7212233404
oct60134731
925680686
1012630489
117147523
124291389
132802c81
14196ad3b
151197579
hexc0b9d9

12630489 has 8 divisors (see below), whose sum is σ = 16895712. Its totient is φ = 8392800.

The previous prime is 12630487. The next prime is 12630509. The reversal of 12630489 is 98403621.

12630489 is digitally balanced in base 2 and base 4, 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 not a de Polignac number, because 12630489 - 21 = 12630487 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12630481) 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, 5787 + ... + 7664.

It is an arithmetic number, because the mean of its divisors is an integer number (2111964).

Almost surely, 212630489 is an apocalyptic number.

It is an amenable number.

12630489 is a deficient number, since it is larger than the sum of its proper divisors (4265223).

12630489 is a wasteful number, since it uses less digits than its factorization.

12630489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13767.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 12630489 is about 3553.9399263353. The cubic root of 12630489 is about 232.8842161446.

The spelling of 12630489 in words is "twelve million, six hundred thirty thousand, four hundred eighty-nine".

Divisors: 1 3 313 939 13451 40353 4210163 12630489