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2104133220 = 2233574091361
BaseRepresentation
bin111110101101010…
…1000011001100100
312102122022001011000
41331122220121210
513302124230340
6544442513300
7103066560120
oct17532503144
95378261130
102104133220
1198a801482
124a8805830
13276c07257
1415d644580
15c4ad1d30
hex7d6a8664

2104133220 has 192 divisors, whose sum is σ = 7505164800. Its totient is φ = 479416320.

The previous prime is 2104133179. The next prime is 2104133221. The reversal of 2104133220 is 223314012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2104133193 and 2104133202.

It is not an unprimeable number, because it can be changed into a prime (2104133221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1545340 + ... + 1546700.

It is an arithmetic number, because the mean of its divisors is an integer number (39089400).

Almost surely, 22104133220 is an apocalyptic number.

2104133220 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 2104133220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3752582400).

2104133220 is an abundant number, since it is smaller than the sum of its proper divisors (5401031580).

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

2104133220 is a wasteful number, since it uses less digits than its factorization.

2104133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2104133220 is about 45870.8319087413. The cubic root of 2104133220 is about 1281.4187597022.

Adding to 2104133220 its reverse (223314012), we get a palindrome (2327447232).

The spelling of 2104133220 in words is "two billion, one hundred four million, one hundred thirty-three thousand, two hundred twenty".