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630070286 = 21721957373
BaseRepresentation
bin100101100011100…
…001110000001110
31121220120212221112
4211203201300032
52242244222121
6142304332022
721420336416
oct4543416016
91556525845
10630070286
112a372714a
12157014012
13a06c6871
145d973646
153a4ac75b
hex258e1c0e

630070286 has 24 divisors (see below), whose sum is σ = 1056829080. Its totient is φ = 280893312.

The previous prime is 630070277. The next prime is 630070289. The reversal of 630070286 is 682070036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630070289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17705 + ... + 39668.

It is an arithmetic number, because the mean of its divisors is an integer number (44034545).

Almost surely, 2630070286 is an apocalyptic number.

630070286 is a deficient number, since it is larger than the sum of its proper divisors (426758794).

630070286 is a wasteful number, since it uses less digits than its factorization.

630070286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57428 (or 57411 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 630070286 is about 25101.2008876070. The cubic root of 630070286 is about 857.2937672094.

The spelling of 630070286 in words is "six hundred thirty million, seventy thousand, two hundred eighty-six".

Divisors: 1 2 17 19 34 38 289 323 578 646 5491 10982 57373 114746 975341 1090087 1950682 2180174 16580797 18531479 33161594 37062958 315035143 630070286