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2130211100 = 225221302111
BaseRepresentation
bin111111011111000…
…0111000100011100
312111110100221021102
41332332013010130
513330313223400
6551213452232
7103534331663
oct17676070434
95443327242
102130211100
119a34a3146
124b54a1078
1327c437c54
14162cb1dda
15c70339d5
hex7ef8711c

2130211100 has 18 divisors (see below), whose sum is σ = 4622558304. Its totient is φ = 852084400.

The previous prime is 2130211081. The next prime is 2130211103. The reversal of 2130211100 is 11120312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130211103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10650956 + ... + 10651155.

Almost surely, 22130211100 is an apocalyptic number.

2130211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130211100 is an abundant number, since it is smaller than the sum of its proper divisors (2492347204).

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

2130211100 is a wasteful number, since it uses less digits than its factorization.

2130211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21302125 (or 21302118 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2130211100 is about 46154.2099921556. The cubic root of 2130211100 is about 1286.6908555265.

Adding to 2130211100 its reverse (11120312), we get a palindrome (2141331412).

The spelling of 2130211100 in words is "two billion, one hundred thirty million, two hundred eleven thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 21302111 42604222 85208444 106510555 213021110 426042220 532552775 1065105550 2130211100