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2104305140 = 225715030751
BaseRepresentation
bin111110101101101…
…0010010111110100
312102122121202222102
41331123102113310
513302200231030
6544450321232
7103101204260
oct17533222764
95378552872
102104305140
1198a909663
124a8889218
13276c67592
1415d68b0a0
15c4b17c45
hex7d6d25f4

2104305140 has 24 divisors (see below), whose sum is σ = 5050332672. Its totient is φ = 721476000.

The previous prime is 2104305019. The next prime is 2104305143. The reversal of 2104305140 is 415034012.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104305143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7515236 + ... + 7515515.

It is an arithmetic number, because the mean of its divisors is an integer number (210430528).

Almost surely, 22104305140 is an apocalyptic number.

2104305140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104305140 is an abundant number, since it is smaller than the sum of its proper divisors (2946027532).

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

2104305140 is a wasteful number, since it uses less digits than its factorization.

2104305140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15030767 (or 15030765 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2104305140 is about 45872.7058281937. The cubic root of 2104305140 is about 1281.4536585561.

Adding to 2104305140 its reverse (415034012), we get a palindrome (2519339152).

The spelling of 2104305140 in words is "two billion, one hundred four million, three hundred five thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 15030751 30061502 60123004 75153755 105215257 150307510 210430514 300615020 420861028 526076285 1052152570 2104305140