Search a number
-
+
489079808 = 210731271
BaseRepresentation
bin11101001001101…
…100010000000000
31021002021211100222
4131021230100000
52000201023213
6120310402212
715056052440
oct3511542000
91232254328
10489079808
11231088998
12117960368
137a430749
1448d52120
152ce0c808
hex1d26c400

489079808 has 132 divisors (see below), whose sum is σ = 1170818496. Its totient is φ = 199987200.

The previous prime is 489079763. The next prime is 489079819. The reversal of 489079808 is 808970984.

It is a self number, because there is not a number n which added to its sum of digits gives 489079808.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6888413 + ... + 6888483.

Almost surely, 2489079808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489079808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585409248).

489079808 is an abundant number, since it is smaller than the sum of its proper divisors (681738688).

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

489079808 is an equidigital number, since it uses as much as digits as its factorization.

489079808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 489079808 is about 22115.1488351311. The cubic root of 489079808 is about 787.8797002574.

The spelling of 489079808 in words is "four hundred eighty-nine million, seventy-nine thousand, eight hundred eight".

Divisors: 1 2 4 7 8 14 16 28 31 32 56 62 64 71 112 124 128 142 217 224 248 256 284 434 448 496 497 512 568 868 896 961 992 994 1024 1136 1736 1792 1922 1984 1988 2201 2272 3472 3584 3844 3968 3976 4402 4544 6727 6944 7168 7688 7936 7952 8804 9088 13454 13888 15376 15407 15872 15904 17608 18176 26908 27776 30752 30814 31744 31808 35216 36352 53816 55552 61504 61628 63616 68231 70432 72704 107632 111104 123008 123256 127232 136462 140864 215264 222208 246016 246512 254464 272924 281728 430528 477617 492032 493024 508928 545848 563456 861056 955234 984064 986048 1091696 1126912 1722112 1910468 1972096 2183392 2253824 3444224 3820936 3944192 4366784 6888448 7641872 7888384 8733568 15283744 15776768 17467136 30567488 34934272 61134976 69868544 122269952 244539904 489079808