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630130389 = 3730006209
BaseRepresentation
bin100101100011110…
…000011011010101
31121220200221101120
4211203300123111
52242303133024
6142305514153
721421006560
oct4543603325
91556627346
10630130389
112a3768319
12157042959
13a0718025
145d98b4d7
153a4c0479
hex258f06d5

630130389 has 8 divisors (see below), whose sum is σ = 960198720. Its totient is φ = 360074496.

The previous prime is 630130343. The next prime is 630130393. The reversal of 630130389 is 983031036.

630130389 is digitally balanced in base 2, because in such base 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 630130389 - 27 = 630130261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630130289) 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, 15003084 + ... + 15003125.

It is an arithmetic number, because the mean of its divisors is an integer number (120024840).

Almost surely, 2630130389 is an apocalyptic number.

It is an amenable number.

630130389 is a deficient number, since it is larger than the sum of its proper divisors (330068331).

630130389 is a wasteful number, since it uses less digits than its factorization.

630130389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30006219.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 630130389 is about 25102.3980726942. The cubic root of 630130389 is about 857.3210256969.

The spelling of 630130389 in words is "six hundred thirty million, one hundred thirty thousand, three hundred eighty-nine".

Divisors: 1 3 7 21 30006209 90018627 210043463 630130389