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2102053220 = 225195531719
BaseRepresentation
bin111110101001010…
…1100100101100100
312102111101100220222
41331102230211210
513301111200340
6544330143512
7103043105021
oct17522544544
95374340828
102102053220
11989610773
124a7b81b98
13276659597
1415d262548
15c48208b5
hex7d4ac964

2102053220 has 24 divisors (see below), whose sum is σ = 4646644800. Its totient is φ = 796567392.

The previous prime is 2102053207. The next prime is 2102053241. The reversal of 2102053220 is 223502012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2765480 + ... + 2766239.

It is an arithmetic number, because the mean of its divisors is an integer number (193610200).

Almost surely, 22102053220 is an apocalyptic number.

2102053220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102053220 is an abundant number, since it is smaller than the sum of its proper divisors (2544591580).

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

2102053220 is a wasteful number, since it uses less digits than its factorization.

2102053220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5531747 (or 5531745 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2102053220 is about 45848.1539432069. The cubic root of 2102053220 is about 1280.9963799565.

Adding to 2102053220 its reverse (223502012), we get a palindrome (2325555232).

The spelling of 2102053220 in words is "two billion, one hundred two million, fifty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 5531719 11063438 22126876 27658595 55317190 105102661 110634380 210205322 420410644 525513305 1051026610 2102053220