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489514780 = 225295991409
BaseRepresentation
bin11101001011010…
…110011100011100
31021010002221001001
4131023112130130
52000303433110
6120324000044
715062543536
oct3513263434
91233087031
10489514780
11231355777
12117b30024
137a553721
1449026856
152ce9663a
hex1d2d671c

489514780 has 48 divisors (see below), whose sum is σ = 1065960000. Its totient is φ = 188604416.

The previous prime is 489514747. The next prime is 489514783. The reversal of 489514780 is 87415984.

It is a self number, because there is not a number n which added to its sum of digits gives 489514780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489514783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346716 + ... + 348124.

It is an arithmetic number, because the mean of its divisors is an integer number (22207500).

Almost surely, 2489514780 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 489514780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532980000).

489514780 is an abundant number, since it is smaller than the sum of its proper divisors (576445220).

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

489514780 is a wasteful number, since it uses less digits than its factorization.

489514780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 489514780 is about 22124.9809039466. The cubic root of 489514780 is about 788.1132027495.

The spelling of 489514780 in words is "four hundred eighty-nine million, five hundred fourteen thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 599 1198 1409 2396 2818 2995 5636 5990 7045 11980 14090 17371 28180 34742 40861 69484 81722 86855 163444 173710 204305 347420 408610 817220 843991 1687982 3375964 4219955 8439910 16879820 24475739 48951478 97902956 122378695 244757390 489514780