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489901472 = 25192353661
BaseRepresentation
bin11101001100110…
…100110110100000
31021010211120110222
4131030310312200
52000403321342
6120340142212
715066044114
oct3514646640
91233746428
10489901472
1123159a255
12118097968
137a65a738
14490c7744
152d020ed2
hex1d334da0

489901472 has 96 divisors (see below), whose sum is σ = 1081019520. Its totient is φ = 217451520.

The previous prime is 489901457. The next prime is 489901487. The reversal of 489901472 is 274109984.

It is an interprime number because it is at equal distance from previous prime (489901457) and next prime (489901487).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740822 + ... + 741482.

It is an arithmetic number, because the mean of its divisors is an integer number (11260620).

Almost surely, 2489901472 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 489901472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540509760).

489901472 is an abundant number, since it is smaller than the sum of its proper divisors (591118048).

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

489901472 is a wasteful number, since it uses less digits than its factorization.

489901472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 489901472 is about 22133.7179886254. The cubic root of 489901472 is about 788.3206713631.

The spelling of 489901472 in words is "four hundred eighty-nine million, nine hundred one thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 19 23 32 38 46 53 76 92 106 152 184 212 304 368 424 437 608 661 736 848 874 1007 1219 1322 1696 1748 2014 2438 2644 3496 4028 4876 5288 6992 8056 9752 10576 12559 13984 15203 16112 19504 21152 23161 25118 30406 32224 35033 39008 46322 50236 60812 70066 92644 100472 121624 140132 185288 200944 243248 280264 288857 370576 401888 486496 560528 577714 665627 741152 805759 1121056 1155428 1331254 1611518 2310856 2662508 3223036 4621712 5325016 6446072 9243424 10650032 12892144 15309421 21300064 25784288 30618842 61237684 122475368 244950736 489901472