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12303220000 = 2554615161
BaseRepresentation
bin10110111010101010…
…00011110100100000
31011202102200022222211
423131111003310200
5200144111020000
65352500411504
7613612434031
oct133525036440
934672608884
1012303220000
115243935315
1224743a6b94
131210c1c146
14849dcca88
154c01b87ba
hex2dd543d20

12303220000 has 60 divisors (see below), whose sum is σ = 30267815886. Its totient is φ = 4921280000.

The previous prime is 12303219997. The next prime is 12303220009. The reversal of 12303220000 is 2230321.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 843089296 + 11460130704 = 29036^2 + 107052^2 .

It is not an unprimeable number, because it can be changed into a prime (12303220009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 287581 + ... + 327580.

Almost surely, 212303220000 is an apocalyptic number.

12303220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12303220000 is an abundant number, since it is smaller than the sum of its proper divisors (17964595886).

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

12303220000 is an frugal number, since it uses more digits than its factorization.

12303220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615191 (or 615168 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 12303220000 its reverse (2230321), we get a palindrome (12305450321).

The spelling of 12303220000 in words is "twelve billion, three hundred three million, two hundred twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 4000 5000 10000 20000 615161 1230322 2460644 3075805 4921288 6151610 9842576 12303220 15379025 19685152 24606440 30758050 49212880 61516100 76895125 98425760 123032200 153790250 246064400 307580500 384475625 492128800 615161000 768951250 1230322000 1537902500 2460644000 3075805000 6151610000 12303220000