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20000220000 = 25354333337
BaseRepresentation
bin10010101000000110…
…110010001101100000
31220121211221110000220
4102220012302031200
5311430024020000
613104334043040
71305424031205
oct225006621540
956554843026
1020000220000
11853366a342
123a62049480
131b69753b07
14d7a341cac
157c0cb11a0
hex4a81b2360

20000220000 has 120 divisors (see below), whose sum is σ = 65604918456. Its totient is φ = 5333376000.

The previous prime is 20000219971. The next prime is 20000220001. The reversal of 20000220000 is 2200002.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

20000220000 is a modest number, since divided by 220000 gives 20000 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000220001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 106669 + ... + 226668.

Almost surely, 220000220000 is an apocalyptic number.

20000220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000220000 is an abundant number, since it is smaller than the sum of its proper divisors (45604698456).

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

20000220000 is an equidigital number, since it uses as much as digits as its factorization.

20000220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333370 (or 333347 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 6.

Adding to 20000220000 its reverse (2200002), we get a palindrome (20002420002).

The spelling of 20000220000 in words is "twenty billion, two hundred twenty thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 125 150 160 200 240 250 300 375 400 480 500 600 625 750 800 1000 1200 1250 1500 1875 2000 2400 2500 3000 3750 4000 5000 6000 7500 10000 12000 15000 20000 30000 60000 333337 666674 1000011 1333348 1666685 2000022 2666696 3333370 4000044 5000055 5333392 6666740 8000088 8333425 10000110 10666784 13333480 16000176 16666850 20000220 25000275 26666960 32000352 33333700 40000440 41667125 50000550 53333920 66667400 80000880 83334250 100001100 125001375 133334800 160001760 166668500 200002200 208335625 250002750 266669600 333337000 400004400 416671250 500005500 625006875 666674000 800008800 833342500 1000011000 1250013750 1333348000 1666685000 2000022000 2500027500 3333370000 4000044000 5000055000 6666740000 10000110000 20000220000