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630104351 = 4191503829
BaseRepresentation
bin100101100011101…
…010000100011111
31121220122121200012
4211203222010133
52242301314401
6142305153435
721420540632
oct4543520437
91556577605
10630104351
112a374a7a8
1215702b87b
13a0709216
145d981c19
153a4b78bb
hex258ea11f

630104351 has 4 divisors (see below), whose sum is σ = 631608600. Its totient is φ = 628600104.

The previous prime is 630104347. The next prime is 630104383. The reversal of 630104351 is 153401036.

It is a happy number.

630104351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 630104351 - 22 = 630104347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (638104351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751496 + ... + 752333.

It is an arithmetic number, because the mean of its divisors is an integer number (157902150).

Almost surely, 2630104351 is an apocalyptic number.

630104351 is a deficient number, since it is larger than the sum of its proper divisors (1504249).

630104351 is a wasteful number, since it uses less digits than its factorization.

630104351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504248.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 630104351 is about 25101.8794316282. The cubic root of 630104351 is about 857.3092169068.

Adding to 630104351 its reverse (153401036), we get a palindrome (783505387).

The spelling of 630104351 in words is "six hundred thirty million, one hundred four thousand, three hundred fifty-one".

Divisors: 1 419 1503829 630104351