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1230030000 = 24325479173
BaseRepresentation
bin100100101010000…
…1100010010110000
310011201111222221200
41021110030102300
510004341430000
6322015451200
742324040203
oct11124142260
93151458850
101230030000
11581357821
122a3b26b00
13167aaa004
14b950993a
1572ebd500
hex4950c4b0

1230030000 has 300 divisors, whose sum is σ = 4381222560. Its totient is φ = 321984000.

The previous prime is 1230029993. The next prime is 1230030001. The reversal of 1230030000 is 300321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (300).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1230030001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 7109914 + ... + 7110086.

Almost surely, 21230030000 is an apocalyptic number.

1230030000 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 1230030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2190611280).

1230030000 is an abundant number, since it is smaller than the sum of its proper divisors (3151192560).

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

1230030000 is a wasteful number, since it uses less digits than its factorization.

1230030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 1230030000 is about 35071.7835303539. The cubic root of 1230030000 is about 1071.4499805246.

Adding to 1230030000 its reverse (300321), we get a palindrome (1230330321).

The spelling of 1230030000 in words is "one billion, two hundred thirty million, thirty thousand".