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12003202100 = 2252120032021
BaseRepresentation
bin10110010110111001…
…00101010000110100
31010222112010211210202
423023130211100310
5144040304431400
65303022140032
7603310351211
oct131334452064
933875124722
1012003202100
1150aa54943a
1223aba21618
131193a16166
1481c212b08
154a3ba44d5
hex2cb725434

12003202100 has 18 divisors (see below), whose sum is σ = 26046948774. Its totient is φ = 4801280800.

The previous prime is 12003202091. The next prime is 12003202163. The reversal of 12003202100 is 120230021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1417673104 + 10585528996 = 37652^2 + 102886^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60015911 + ... + 60016110.

Almost surely, 212003202100 is an apocalyptic number.

12003202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12003202100 is an abundant number, since it is smaller than the sum of its proper divisors (14043746674).

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

12003202100 is a wasteful number, since it uses less digits than its factorization.

12003202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120032035 (or 120032028 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12003202100 its reverse (120230021), we get a palindrome (12123432121).

The spelling of 12003202100 in words is "twelve billion, three million, two hundred two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 120032021 240064042 480128084 600160105 1200320210 2400640420 3000800525 6001601050 12003202100