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2543904000 = 28325311273
BaseRepresentation
bin1001011110100000…
…1110010100000000
320120021210201020200
42113220032110000
520202214412000
61100232405200
7120016553511
oct22750162400
96507721220
102543904000
111095a70800
125abb46800
13317061c51
141a1bdca08
15ed4ee500
hex97a0e500

2543904000 has 648 divisors, whose sum is σ = 10199343336. Its totient is φ = 608256000.

The previous prime is 2543903993. The next prime is 2543904007. The reversal of 2543904000 is 4093452.

2543904000 is a `hidden beast` number, since 254 + 3 + 9 + 0 + 400 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2543903993) and next prime (2543904007).

It can be written as a sum of positive squares in 4 ways, for example, as 80568576 + 2463335424 = 8976^2 + 49632^2 .

It is a super-2 number, since 2×25439040002 = 12942895122432000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543904007) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 34847964 + ... + 34848036.

Almost surely, 22543904000 is an apocalyptic number.

2543904000 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 2543904000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5099671668).

2543904000 is an abundant number, since it is smaller than the sum of its proper divisors (7655439336).

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

2543904000 is a wasteful number, since it uses less digits than its factorization.

2543904000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2543904000 is about 50437.1291807930. The cubic root of 2543904000 is about 1365.1076677138.

Adding to 2543904000 its reverse (4093452), we get a palindrome (2547997452).

The spelling of 2543904000 in words is "two billion, five hundred forty-three million, nine hundred four thousand".