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489670272 = 2735713173
BaseRepresentation
bin11101001011111…
…100011010000000
31021010101211100000
4131023330122000
52000323422042
6120331200000
715064062060
oct3513743200
91233354300
10489670272
11231451583
12117ba6000
137a5a9430
14490673a0
152cec774c
hex1d2fc680

489670272 has 384 divisors, whose sum is σ = 1808876160. Its totient is φ = 128397312.

The previous prime is 489670243. The next prime is 489670277. The reversal of 489670272 is 272076984.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (489670277) 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, 2830378 + ... + 2830550.

It is an arithmetic number, because the mean of its divisors is an integer number (4710615).

Almost surely, 2489670272 is an apocalyptic number.

489670272 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489670272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904438080).

489670272 is an abundant number, since it is smaller than the sum of its proper divisors (1319205888).

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

489670272 is a wasteful number, since it uses less digits than its factorization.

489670272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 489670272 is about 22128.4945714796. The cubic root of 489670272 is about 788.1966406967.

It can be divided in two parts, 489 and 670272, that added together give a square (670761 = 8192).

The spelling of 489670272 in words is "four hundred eighty-nine million, six hundred seventy thousand, two hundred seventy-two".