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489970832 = 24132355629
BaseRepresentation
bin11101001101000…
…101110010010000
31021010222002121212
4131031011302100
52000413031312
6120341435252
715066453251
oct3515056220
91233862555
10489970832
1123163737a
1211810bb28
137a683190
1449104b28
152d036822
hex1d345c90

489970832 has 20 divisors (see below), whose sum is σ = 1022343420. Its totient is φ = 226140288.

The previous prime is 489970823. The next prime is 489970867. The reversal of 489970832 is 238079984.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 280763536 + 209207296 = 16756^2 + 14464^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177607 + ... + 1178022.

It is an arithmetic number, because the mean of its divisors is an integer number (51117171).

Almost surely, 2489970832 is an apocalyptic number.

It is an amenable number.

489970832 is an abundant number, since it is smaller than the sum of its proper divisors (532372588).

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

489970832 is a wasteful number, since it uses less digits than its factorization.

489970832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355650 (or 2355644 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 489970832 is about 22135.2847734110. The cubic root of 489970832 is about 788.3578729534.

The spelling of 489970832 in words is "four hundred eighty-nine million, nine hundred seventy thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 13 16 26 52 104 208 2355629 4711258 9422516 18845032 30623177 37690064 61246354 122492708 244985416 489970832