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12630355 = 56141411
BaseRepresentation
bin110000001011…
…100101010011
3212202200120221
4300023211103
511213132410
61130413511
7212233123
oct60134523
925680527
1012630355
117147411
124291297
132802baa
14196ac83
1511974da
hexc0b953

12630355 has 8 divisors (see below), whose sum is σ = 15405264. Its totient is φ = 9938400.

The previous prime is 12630313. The next prime is 12630367. The reversal of 12630355 is 55303621.

It is a happy number.

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

It is not a de Polignac number, because 12630355 - 29 = 12629843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20401 + ... + 21010.

It is an arithmetic number, because the mean of its divisors is an integer number (1925658).

Almost surely, 212630355 is an apocalyptic number.

12630355 is a deficient number, since it is larger than the sum of its proper divisors (2774909).

12630355 is an equidigital number, since it uses as much as digits as its factorization.

12630355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41477.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 12630355 is about 3553.9210739689. The cubic root of 12630355 is about 232.8833925662.

Adding to 12630355 its reverse (55303621), we get a palindrome (67933976).

The spelling of 12630355 in words is "twelve million, six hundred thirty thousand, three hundred fifty-five".

Divisors: 1 5 61 305 41411 207055 2526071 12630355