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2130430400 = 26527375397
BaseRepresentation
bin111111011111011…
…1100100111000000
312111110210002002122
41332332330213000
513330342233100
6551222303412
7103536234230
oct17676744700
95443702078
102130430400
119a363298a
124b5587b68
1327c4b3a07
14162d2bcc0
15c7078985
hex7efbc9c0

2130430400 has 336 divisors, whose sum is σ = 6333719616. Its totient is φ = 690094080.

The previous prime is 2130430387. The next prime is 2130430403. The reversal of 2130430400 is 40340312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130430403) 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 47 ways as a sum of consecutive naturals, for example, 21963152 + ... + 21963248.

It is an arithmetic number, because the mean of its divisors is an integer number (18850356).

Almost surely, 22130430400 is an apocalyptic number.

2130430400 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 2130430400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3166859808).

2130430400 is an abundant number, since it is smaller than the sum of its proper divisors (4203289216).

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

2130430400 is a wasteful number, since it uses less digits than its factorization.

2130430400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2130430400 is about 46156.5856622866. The cubic root of 2130430400 is about 1286.7350078990.

Adding to 2130430400 its reverse (40340312), we get a palindrome (2170770712).

The spelling of 2130430400 in words is "two billion, one hundred thirty million, four hundred thirty thousand, four hundred".