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489973120 = 27571347179
BaseRepresentation
bin11101001101000…
…110010110000000
31021010222012202121
4131031012112000
52000413114440
6120341454024
715066463030
oct3515062600
91233865677
10489973120
1123163906a
12118111314
137a684230
14491058c0
152d03734a
hex1d346580

489973120 has 256 divisors, whose sum is σ = 1480550400. Its totient is φ = 150921216.

The previous prime is 489973103. The next prime is 489973123. The reversal of 489973120 is 21379984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489973123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2737191 + ... + 2737369.

It is an arithmetic number, because the mean of its divisors is an integer number (5783400).

Almost surely, 2489973120 is an apocalyptic number.

489973120 is a gapful number since it is divisible by the number (40) 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 489973120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740275200).

489973120 is an abundant number, since it is smaller than the sum of its proper divisors (990577280).

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

489973120 is a wasteful number, since it uses less digits than its factorization.

489973120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 489973120 is about 22135.3364555409. The cubic root of 489973120 is about 788.3591000740.

The spelling of 489973120 in words is "four hundred eighty-nine million, nine hundred seventy-three thousand, one hundred twenty".