Search a number
-
+
2740830400 = 265271122247
BaseRepresentation
bin1010001101011101…
…1100000011000000
321002000100121111001
42203113130003000
521103123033100
61131545301344
7124630450120
oct24327340300
97060317431
102740830400
1111871444a0
12645a94854
13348ab1249
141c0020c80
1511094cd6a
hexa35dc0c0

2740830400 has 168 divisors, whose sum is σ = 8408676096. Its totient is φ = 854246400.

The previous prime is 2740830371. The next prime is 2740830403. The reversal of 2740830400 is 40380472.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (2740830403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112077 + ... + 134323.

Almost surely, 22740830400 is an apocalyptic number.

2740830400 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 2740830400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4204338048).

2740830400 is an abundant number, since it is smaller than the sum of its proper divisors (5667845696).

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

2740830400 is a wasteful number, since it uses less digits than its factorization.

2740830400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22287 (or 22272 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 2740830400 is about 52352.9407005948. The cubic root of 2740830400 is about 1399.4607446960.

The spelling of 2740830400 in words is "two billion, seven hundred forty million, eight hundred thirty thousand, four hundred".