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487992 = 23320333
BaseRepresentation
bin1110111001000111000
3220210101210
41313020320
5111103432
614243120
74101501
oct1671070
9823353
10487992
113036aa
121b64a0
1314116b
14c9ba8
15998cc
hex77238

487992 has 16 divisors (see below), whose sum is σ = 1220040. Its totient is φ = 162656.

The previous prime is 487979. The next prime is 487997. The reversal of 487992 is 299784.

487992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 487992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487997) by changing a digit.

487992 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10143 + ... + 10190.

2487992 is an apocalyptic number.

It is an amenable number.

487992 is an abundant number, since it is smaller than the sum of its proper divisors (732048).

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

487992 is a wasteful number, since it uses less digits than its factorization.

487992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20342 (or 20338 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 487992 is about 698.5642418561. The cubic root of 487992 is about 78.7295134414.

The spelling of 487992 in words is "four hundred eighty-seven thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 20333 40666 60999 81332 121998 162664 243996 487992