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630246189 = 32772812699
BaseRepresentation
bin100101100100001…
…100101100101101
31121220220211020110
4211210030230231
52242320334224
6142312210233
721422001306
oct4544145455
91556824213
10630246189
112a3837321
12157099979
13a0758951
145d9bb7ad
153a4e4929
hex2590cb2d

630246189 has 16 divisors (see below), whose sum is σ = 846676800. Its totient is φ = 417002880.

The previous prime is 630246179. The next prime is 630246217. The reversal of 630246189 is 981642036.

It is not a de Polignac number, because 630246189 - 24 = 630246173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630246119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232162 + ... + 234860.

It is an arithmetic number, because the mean of its divisors is an integer number (52917300).

Almost surely, 2630246189 is an apocalyptic number.

It is an amenable number.

630246189 is a deficient number, since it is larger than the sum of its proper divisors (216430611).

630246189 is a wasteful number, since it uses less digits than its factorization.

630246189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 630246189 is about 25104.7045192729. The cubic root of 630246189 is about 857.3735395340.

The spelling of 630246189 in words is "six hundred thirty million, two hundred forty-six thousand, one hundred eighty-nine".

Divisors: 1 3 277 281 831 843 2699 8097 77837 233511 747623 758419 2242869 2275257 210082063 630246189