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492040 = 23512301
BaseRepresentation
bin1111000001000001000
3220222221201
41320020020
5111221130
614313544
74116343
oct1701010
9828851
10492040
1130674a
121b88b4
13142c63
14cb45a
159abca
hex78208

492040 has 16 divisors (see below), whose sum is σ = 1107180. Its totient is φ = 196800.

The previous prime is 492029. The next prime is 492047. The reversal of 492040 is 40294.

It can be written as a sum of positive squares in 2 ways, for example, as 481636 + 10404 = 694^2 + 102^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 491999 and 492017.

It is not an unprimeable number, because it can be changed into a prime (492047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6111 + ... + 6190.

2492040 is an apocalyptic number.

492040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

492040 is an abundant number, since it is smaller than the sum of its proper divisors (615140).

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

492040 is a wasteful number, since it uses less digits than its factorization.

492040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12312 (or 12308 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 492040 is about 701.4556293879. The cubic root of 492040 is about 78.9466070882.

The spelling of 492040 in words is "four hundred ninety-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 12301 24602 49204 61505 98408 123010 246020 492040