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120120202000 = 245360060101
BaseRepresentation
bin110111111011110111…
…0001101001100010000
3102111001101100111122101
41233313232031030100
53432001232431000
6131103224450144
711451455604361
oct1576756151420
9374041314571
10120120202000
1146a407a4717
121b344019954
13b434082206
145b572b5b68
1531d07eae6a
hex1bf7b8d310

120120202000 has 40 divisors (see below), whose sum is σ = 290450653272. Its totient is φ = 48048080000.

The previous prime is 120120201989. The next prime is 120120202003. The reversal of 120120202000 is 202021021.

It can be written as a sum of positive squares in 4 ways, for example, as 2490409216 + 117629792784 = 49904^2 + 342972^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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

It is not an unprimeable number, because it can be changed into a prime (120120202003) 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, 30028051 + ... + 30032050.

Almost surely, 2120120202000 is an apocalyptic number.

120120202000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120120202000 is an abundant number, since it is smaller than the sum of its proper divisors (170330451272).

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

120120202000 is an equidigital number, since it uses as much as digits as its factorization.

120120202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60060124 (or 60060108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 120120202000 its reverse (202021021), we get a palindrome (120322223021).

The spelling of 120120202000 in words is "one hundred twenty billion, one hundred twenty million, two hundred two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 60060101 120120202 240240404 300300505 480480808 600601010 960961616 1201202020 1501502525 2402404040 3003005050 4804808080 6006010100 7507512625 12012020200 15015025250 24024040400 30030050500 60060101000 120120202000