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12050020 = 225602501
BaseRepresentation
bin101101111101…
…111001100100
3211200012112001
4231331321210
511041100040
61110135044
7204265153
oct55757144
924605461
1012050020
1168903a4
124051484
13265b9b8
14185959a
1510d059a
hexb7de64

12050020 has 12 divisors (see below), whose sum is σ = 25305084. Its totient is φ = 4820000.

The previous prime is 12050011. The next prime is 12050029. The reversal of 12050020 is 2005021.

It is an interprime number because it is at equal distance from previous prime (12050011) and next prime (12050029).

It can be written as a sum of positive squares in 2 ways, for example, as 3709476 + 8340544 = 1926^2 + 2888^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12049979 and 12050006.

It is not an unprimeable number, because it can be changed into a prime (12050029) 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, 301231 + ... + 301270.

It is an arithmetic number, because the mean of its divisors is an integer number (2108757).

Almost surely, 212050020 is an apocalyptic number.

12050020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12050020 is an abundant number, since it is smaller than the sum of its proper divisors (13255064).

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

12050020 is a wasteful number, since it uses less digits than its factorization.

12050020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602510 (or 602508 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 12050020 is about 3471.3138722968. The cubic root of 12050020 is about 229.2605109134.

Adding to 12050020 its reverse (2005021), we get a palindrome (14055041).

The spelling of 12050020 in words is "twelve million, fifty thousand, twenty".

Divisors: 1 2 4 5 10 20 602501 1205002 2410004 3012505 6025010 12050020