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200001230310020 = 22510000061515501
BaseRepresentation
bin101101011110011001101010…
…010010011000101010000100
3222020010221010121200021122012
4231132121222102120222010
5202203310004424410040
61545211144035153352
760061416634632266
oct5536315222305204
9866127117607565
10200001230310020
11587aa055541497
121a5216b3445858
13877a05c136489
14375617b1a3b36
15181c7570b5865
hexb5e66a498a84

200001230310020 has 12 divisors (see below), whose sum is σ = 420002583651084. Its totient is φ = 80000492124000.

The previous prime is 200001230310001. The next prime is 200001230310053. The reversal of 200001230310020 is 20013032100002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42603530471044 + 157397699838976 = 6527138^2 + 12545824^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200001230309977 and 200001230310004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000030757731 + ... + 5000030757770.

It is an arithmetic number, because the mean of its divisors is an integer number (35000215304257).

Almost surely, 2200001230310020 is an apocalyptic number.

200001230310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200001230310020 is an abundant number, since it is smaller than the sum of its proper divisors (220001353341064).

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

200001230310020 is a wasteful number, since it uses less digits than its factorization.

200001230310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000061515510 (or 10000061515508 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 200001230310020 its reverse (20013032100002), we get a palindrome (220014262410022).

The spelling of 200001230310020 in words is "two hundred trillion, one billion, two hundred thirty million, three hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 10000061515501 20000123031002 40000246062004 50000307577505 100000615155010 200001230310020