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430020 = 223252389
BaseRepresentation
bin1101000111111000100
3210211212200
41220333010
5102230040
613114500
73440463
oct1507704
9724780
10430020
11274098
12188a30
13120966
14b29da
1587630
hex68fc4

430020 has 36 divisors (see below), whose sum is σ = 1304940. Its totient is φ = 114624.

The previous prime is 430019. The next prime is 430057. The reversal of 430020 is 20034.

It can be written as a sum of positive squares in 2 ways, for example, as 125316 + 304704 = 354^2 + 552^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an Ulam number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 429984 and 430011.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 430020.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1015 + ... + 1374.

2430020 is an apocalyptic number.

It is an amenable number.

430020 is an abundant number, since it is smaller than the sum of its proper divisors (874920).

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

430020 is a wasteful number, since it uses less digits than its factorization.

430020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404 (or 2399 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 430020 is about 655.7591021099. The cubic root of 430020 is about 75.4795933328.

Adding to 430020 its reverse (20034), we get a palindrome (450054).

The spelling of 430020 in words is "four hundred thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 2389 4778 7167 9556 11945 14334 21501 23890 28668 35835 43002 47780 71670 86004 107505 143340 215010 430020