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489030822 = 232759157419
BaseRepresentation
bin11101001001100…
…000010010100110
31021002012100011200
4131021200102212
52000142441242
6120305343330
715055456560
oct3511402246
91232170150
10489030822
11231055105
12117937b46
137a414367
1448d3c330
152cded04c
hex1d2604a6

489030822 has 96 divisors (see below), whose sum is σ = 1242259200. Its totient is φ = 136154304.

The previous prime is 489030811. The next prime is 489030827. The reversal of 489030822 is 228030984.

It is a super-2 number, since 2×4890308222 = 478302289731991368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489030827) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1166929 + ... + 1167347.

It is an arithmetic number, because the mean of its divisors is an integer number (12940200).

Almost surely, 2489030822 is an apocalyptic number.

489030822 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 489030822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621129600).

489030822 is an abundant number, since it is smaller than the sum of its proper divisors (753228378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489030822 is a wasteful number, since it uses less digits than its factorization.

489030822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 489030822 is about 22114.0412860246. The cubic root of 489030822 is about 787.8533948276.

The spelling of 489030822 in words is "four hundred eighty-nine million, thirty thousand, eight hundred twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 59 63 118 126 157 177 314 354 413 419 471 531 826 838 942 1062 1099 1239 1257 1413 2198 2478 2514 2826 2933 3297 3717 3771 5866 6594 7434 7542 8799 9263 9891 17598 18526 19782 24721 26397 27789 49442 52794 55578 64841 65783 74163 83367 129682 131566 148326 166734 173047 194523 197349 222489 346094 389046 394698 444978 460481 519141 583569 592047 920962 1038282 1167138 1184094 1381443 1557423 2762886 3114846 3881197 4144329 7762394 8288658 11643591 23287182 27168379 34930773 54336758 69861546 81505137 163010274 244515411 489030822