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20102010000220 = 22513956531279133
BaseRepresentation
bin1001001001000010111010…
…01010100101001101011100
32122011201210122021102212001
410210201131022211031130
510113322404030001340
6110430422542252044
74143215355512221
oct444413512451534
978151718242761
1020102010000220
11645023a650045
122307aa2587024
13b2a7c435c505
144d6d2a21b948
1524cd757ab29a
hex12485d2a535c

20102010000220 has 48 divisors (see below), whose sum is σ = 42525474979680. Its totient is φ = 7981538086656.

The previous prime is 20102010000217. The next prime is 20102010000253. The reversal of 20102010000220 is 2200001020102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20102010000197 and 20102010000206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15075774 + ... + 16354906.

It is an arithmetic number, because the mean of its divisors is an integer number (885947395410).

Almost surely, 220102010000220 is an apocalyptic number.

20102010000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102010000220 is an abundant number, since it is smaller than the sum of its proper divisors (22423464979460).

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

20102010000220 is a wasteful number, since it uses less digits than its factorization.

20102010000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284934 (or 1284932 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20102010000220 its reverse (2200001020102), we get a palindrome (22302011020322).

The spelling of 20102010000220 in words is "twenty trillion, one hundred two billion, ten million, two hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 5653 11306 22612 28265 56530 113060 785767 1279133 1571534 2558266 3143068 3928835 5116532 6395665 7857670 12791330 15715340 25582660 177799487 355598974 711197948 888997435 1777994870 3555989740 7230938849 14461877698 28923755396 36154694245 72309388490 144618776980 1005100500011 2010201000022 4020402000044 5025502500055 10051005000110 20102010000220