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201300020 = 22529347069
BaseRepresentation
bin10111111111110…
…01100000110100
3112000210002201022
423333321200310
5403013100040
631550320312
74663010345
oct1377714064
9460702638
10201300020
11a36a0759
12574b9098
1332920c4c
141ca400cc
1512a146b5
hexbff9834

201300020 has 24 divisors (see below), whose sum is σ = 437308200. Its totient is φ = 77743232.

The previous prime is 201299993. The next prime is 201300031. The reversal of 201300020 is 20003102.

It can be written as a sum of positive squares in 4 ways, for example, as 72114064 + 129185956 = 8492^2 + 11366^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201299980 and 201300007.

It is a congruent number.

It is an unprimeable number.

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, 172955 + ... + 174114.

It is an arithmetic number, because the mean of its divisors is an integer number (18221175).

Almost surely, 2201300020 is an apocalyptic number.

201300020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201300020 is an abundant number, since it is smaller than the sum of its proper divisors (236008180).

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

201300020 is a wasteful number, since it uses less digits than its factorization.

201300020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347107 (or 347105 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 201300020 is about 14188.0238229290. The cubic root of 201300020 is about 586.0679059484.

Adding to 201300020 its reverse (20003102), we get a palindrome (221303122).

The spelling of 201300020 in words is "two hundred one million, three hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 347069 694138 1388276 1735345 3470690 6941380 10065001 20130002 40260004 50325005 100650010 201300020