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300020 = 22572143
BaseRepresentation
bin1001001001111110100
3120020112212
41021033310
534100040
610232552
72356460
oct1111764
9506485
10300020
11195456
12125758
13a6736
147b4a0
155dd65
hex493f4

300020 has 24 divisors (see below), whose sum is σ = 720384. Its totient is φ = 102816.

The previous prime is 300017. The next prime is 300023. The reversal of 300020 is 20003.

Adding to 300020 its reverse (20003), we get a palindrome (320023).

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (300017) and next prime (300023).

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a junction number, because it is equal to n+sod(n) for n = 299977 and 300013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932 + ... + 1211.

It is an arithmetic number, because the mean of its divisors is an integer number (30016).

2300020 is an apocalyptic number.

It is an amenable number.

300020 is an abundant number, since it is smaller than the sum of its proper divisors (420364).

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

300020 is a wasteful number, since it uses less digits than its factorization.

300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159 (or 2157 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 5.

The square root of 300020 is about 547.7408146195. The cubic root of 300020 is about 66.9447826039.

The spelling of 300020 in words is "three hundred thousand, twenty", and thus it is an iban number.

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2143 4286 8572 10715 15001 21430 30002 42860 60004 75005 150010 300020