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489623080 = 23523532199
BaseRepresentation
bin11101001011110…
…000111000101000
31021010022102121011
4131023300320220
52000320414310
6120330153304
715063504352
oct3513607050
91233272534
10489623080
1123141a081
12117b82834
137a590acb
14490540d2
152ceb878a
hex1d2f0e28

489623080 has 32 divisors (see below), whose sum is σ = 1149552000. Its totient is φ = 187333696.

The previous prime is 489623047. The next prime is 489623081. The reversal of 489623080 is 80326984.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (489623081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265180 + ... + 267019.

It is an arithmetic number, because the mean of its divisors is an integer number (35923500).

Almost surely, 2489623080 is an apocalyptic number.

489623080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489623080 is an abundant number, since it is smaller than the sum of its proper divisors (659928920).

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

489623080 is a wasteful number, since it uses less digits than its factorization.

489623080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532233 (or 532229 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 489623080 is about 22127.4282283324. The cubic root of 489623080 is about 788.1713190513.

The spelling of 489623080 in words is "four hundred eighty-nine million, six hundred twenty-three thousand, eighty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 532199 1064398 2128796 2660995 4257592 5321990 10643980 12240577 21287960 24481154 48962308 61202885 97924616 122405770 244811540 489623080