Search a number
-
+
2130020112220 = 225711131372692887
BaseRepresentation
bin11110111111101111000…
…101111001011101011100
321112121221202121220100221
4132333233011321131130
5234344240122042340
64310303455131124
7306613612136440
oct36775705713534
97477852556327
102130020112220
11751377907590
122a498b513aa4
13125b2465b410
14751448b2820
153a6179b544a
hex1efef17975c

2130020112220 has 384 divisors, whose sum is σ = 6074193162240. Its totient is φ = 605888225280.

The previous prime is 2130020112211. The next prime is 2130020112239. The reversal of 2130020112220 is 222110200312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2130020112194 and 2130020112203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 737795617 + ... + 737798503.

It is an arithmetic number, because the mean of its divisors is an integer number (15818211360).

Almost surely, 22130020112220 is an apocalyptic number.

2130020112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2130020112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3037096581120).

2130020112220 is an abundant number, since it is smaller than the sum of its proper divisors (3944173050020).

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

2130020112220 is a wasteful number, since it uses less digits than its factorization.

2130020112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333 (or 3331 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2130020112220 its reverse (222110200312), we get a palindrome (2352130312532).

The spelling of 2130020112220 in words is "two trillion, one hundred thirty billion, twenty million, one hundred twelve thousand, two hundred twenty".