Search a number
-
+
2010440420 = 225100522021
BaseRepresentation
bin111011111010100…
…1110001011100100
312012002222221210022
41313311032023210
513104133043140
6531254414312
7100551314222
oct16765161344
95162887708
102010440420
1194192870a
12481361398
13260691521
14151015b12
15bb7760b5
hex77d4e2e4

2010440420 has 12 divisors (see below), whose sum is σ = 4221924924. Its totient is φ = 804176160.

The previous prime is 2010440413. The next prime is 2010440423. The reversal of 2010440420 is 240440102.

It can be written as a sum of positive squares in 2 ways, for example, as 201129124 + 1809311296 = 14182^2 + 42536^2 .

It is not an unprimeable number, because it can be changed into a prime (2010440423) 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, 50260991 + ... + 50261030.

It is an arithmetic number, because the mean of its divisors is an integer number (351827077).

Almost surely, 22010440420 is an apocalyptic number.

2010440420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2010440420 is an abundant number, since it is smaller than the sum of its proper divisors (2211484504).

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

2010440420 is a wasteful number, since it uses less digits than its factorization.

2010440420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100522030 (or 100522028 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2010440420 is about 44837.9350550402. The cubic root of 2010440420 is about 1262.1095968974.

Adding to 2010440420 its reverse (240440102), we get a palindrome (2250880522).

The spelling of 2010440420 in words is "two billion, ten million, four hundred forty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 100522021 201044042 402088084 502610105 1005220210 2010440420