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2143104220 = 225107155211
BaseRepresentation
bin111111110111101…
…0010110011011100
312112100121222022101
41333233102303130
513342113313340
6552354054444
7104052041155
oct17757226334
95470558271
102143104220
119aa7a9a14
124b987a424
1328200060a
141648aa92c
15c822dc9a
hex7fbd2cdc

2143104220 has 12 divisors (see below), whose sum is σ = 4500518904. Its totient is φ = 857241680.

The previous prime is 2143104209. The next prime is 2143104241. The reversal of 2143104220 is 224013412.

It is a congruent number.

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, 53577586 + ... + 53577625.

It is an arithmetic number, because the mean of its divisors is an integer number (375043242).

Almost surely, 22143104220 is an apocalyptic number.

2143104220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143104220 is an abundant number, since it is smaller than the sum of its proper divisors (2357414684).

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

2143104220 is a wasteful number, since it uses less digits than its factorization.

2143104220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107155220 (or 107155218 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2143104220 is about 46293.6736498628. The cubic root of 2143104220 is about 1289.2815381138.

Adding to 2143104220 its reverse (224013412), we get a palindrome (2367117632).

The spelling of 2143104220 in words is "two billion, one hundred forty-three million, one hundred four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 107155211 214310422 428620844 535776055 1071552110 2143104220