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489902272 = 2671131823
BaseRepresentation
bin11101001100110…
…101000011000000
31021010211121120121
4131030311003000
52000403333042
6120340150024
715066046336
oct3514650300
91233747517
10489902272
1123159a912
12118098314
137a65ac02
14490c7b56
152d021367
hex1d3350c0

489902272 has 56 divisors (see below), whose sum is σ = 994574592. Its totient is φ = 239366400.

The previous prime is 489902263. The next prime is 489902297. The reversal of 489902272 is 272209984.

It is a super-2 number, since 2×4899022722 = 480008472221523968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594853 + ... + 595675.

Almost surely, 2489902272 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 489902272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497287296).

489902272 is an abundant number, since it is smaller than the sum of its proper divisors (504672320).

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

489902272 is a wasteful number, since it uses less digits than its factorization.

489902272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 489902272 is about 22133.7360605931. The cubic root of 489902272 is about 788.3211004672.

The spelling of 489902272 in words is "four hundred eighty-nine million, nine hundred two thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 71 131 142 262 284 524 568 823 1048 1136 1646 2096 2272 3292 4192 4544 6584 8384 9301 13168 18602 26336 37204 52672 58433 74408 107813 116866 148816 215626 233732 297632 431252 467464 595264 862504 934928 1725008 1869856 3450016 3739712 6900032 7654723 15309446 30618892 61237784 122475568 244951136 489902272