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1968300000 = 253955
BaseRepresentation
bin111010101010001…
…1101111111100000
312002011201000000000
41311110131333200
513012341100000
6523151300000
766530162652
oct16524357740
95064630000
101968300000
11920065a17
1246b21a600
13254a28674
141495a66d2
15b7c00000
hex7551dfe0

1968300000 has 360 divisors, whose sum is σ = 7265206872. Its totient is φ = 524880000.

The previous prime is 1968299999. The next prime is 1968300007. The reversal of 1968300000 is 38691.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968300007) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 393659998 + ... + 393660002.

Almost surely, 21968300000 is an apocalyptic number.

1968300000 is a gapful number since it is divisible by the number (10) 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 1968300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3632603436).

1968300000 is an abundant number, since it is smaller than the sum of its proper divisors (5296906872).

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

1968300000 is an frugal number, since it uses more digits than its factorization.

1968300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1968300000 is about 44365.5271579185. The cubic root of 1968300000 is about 1253.2289850755.

Adding to 1968300000 its reverse (38691), we get a palindrome (1968338691).

The spelling of 1968300000 in words is "one billion, nine hundred sixty-eight million, three hundred thousand".