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20203102000 = 245310101551
BaseRepresentation
bin10010110100001100…
…101101111100110000
31221010222200220211001
4102310030231330300
5312333443231000
613140422331344
71313436351004
oct226414557460
957128626731
1020203102000
118628140614
123ab9b89b54
131b9c7a9b33
14d99274704
157d39d946a
hex4b432df30

20203102000 has 40 divisors (see below), whose sum is σ = 48851105472. Its totient is φ = 8081240000.

The previous prime is 20203101979. The next prime is 20203102009. The reversal of 20203102000 is 20130202.

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 (20203102009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5048776 + ... + 5052775.

Almost surely, 220203102000 is an apocalyptic number.

20203102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20203102000 is an abundant number, since it is smaller than the sum of its proper divisors (28648003472).

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

20203102000 is a wasteful number, since it uses less digits than its factorization.

20203102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101574 (or 10101558 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 20203102000 its reverse (20130202), we get a palindrome (20223232202).

The spelling of 20203102000 in words is "twenty billion, two hundred three million, one hundred two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 10101551 20203102 40406204 50507755 80812408 101015510 161624816 202031020 252538775 404062040 505077550 808124080 1010155100 1262693875 2020310200 2525387750 4040620400 5050775500 10101551000 20203102000