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30023220000 = 25354617811
BaseRepresentation
bin11011111101100001…
…011111101100100000
32212111100222121020010
4123331201133230200
5442441421020000
621443101444520
72112001105434
oct337541375440
985440877203
1030023220000
1111807363614
12599a870740
132aa6135047
14164b5709c4
15baabb3d50
hex6fd85fb20

30023220000 has 240 divisors, whose sum is σ = 98763410592. Its totient is φ = 7983360000.

The previous prime is 30023219999. The next prime is 30023220001. The reversal of 30023220000 is 2232003.

It is an interprime number because it is at equal distance from previous prime (30023219999) and next prime (30023220001).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (30023220001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 37019595 + ... + 37020405.

Almost surely, 230023220000 is an apocalyptic number.

30023220000 is a gapful number since it is divisible by the number (30) 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 30023220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49381705296).

30023220000 is an abundant number, since it is smaller than the sum of its proper divisors (68740190592).

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

30023220000 is an equidigital number, since it uses as much as digits as its factorization.

30023220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461 (or 1438 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 30023220000 its reverse (2232003), we get a palindrome (30025452003).

The spelling of 30023220000 in words is "thirty billion, twenty-three million, two hundred twenty thousand".