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489744801 = 327132832113
BaseRepresentation
bin11101001100001…
…110100110100001
31021010112121120100
4131030032212201
52000333313201
6120332533013
715064522260
oct3514164641
91233477510
10489744801
112314a2577
12118021169
137a604330
14490865d7
152cede886
hex1d30e9a1

489744801 has 48 divisors (see below), whose sum is σ = 874147456. Its totient is φ = 257292288.

The previous prime is 489744799. The next prime is 489744803. The reversal of 489744801 is 108447984.

It is an interprime number because it is at equal distance from previous prime (489744799) and next prime (489744803).

It is not a de Polignac number, because 489744801 - 21 = 489744799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489744803) 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, 230721 + ... + 232833.

Almost surely, 2489744801 is an apocalyptic number.

It is an amenable number.

489744801 is a deficient number, since it is larger than the sum of its proper divisors (384402655).

489744801 is a wasteful number, since it uses less digits than its factorization.

489744801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 489744801 is about 22130.1785126103. The cubic root of 489744801 is about 788.2366271466.

It can be divided in two parts, 489744 and 801, that added together give a triangular number (490545 = T990).

The spelling of 489744801 in words is "four hundred eighty-nine million, seven hundred forty-four thousand, eight hundred one".

Divisors: 1 3 7 9 13 21 39 63 91 117 273 283 819 849 1981 2113 2547 3679 5943 6339 11037 14791 17829 19017 25753 27469 33111 44373 77259 82407 133119 192283 231777 247221 576849 597979 1730547 1793937 4185853 5381811 7773727 12557559 23321181 37672677 54416089 69963543 163248267 489744801