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30233223020 = 2257111373137151
BaseRepresentation
bin11100001010000010…
…100101111101101100
32220001000010212012202
4130022002211331230
5443404201114040
621520002521032
72120131104230
oct341202457554
986030125182
1030233223020
1111904958a30
125a39066178
132b0a7b23a0
14166b3d85c0
15bbe347015
hex70a0a5f6c

30233223020 has 384 divisors, whose sum is σ = 87619940352. Its totient is φ = 8460288000.

The previous prime is 30233223001. The next prime is 30233223043. The reversal of 30233223020 is 2032233203.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30233222983 and 30233223001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 200219945 + ... + 200220095.

It is an arithmetic number, because the mean of its divisors is an integer number (228176928).

Almost surely, 230233223020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30233223020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43809970176).

30233223020 is an abundant number, since it is smaller than the sum of its proper divisors (57386717332).

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

30233223020 is a wasteful number, since it uses less digits than its factorization.

30233223020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

30233223020 divided by its sum of digits (20) gives a palindrome (1511661151).

Adding to 30233223020 its reverse (2032233203), we get a palindrome (32265456223).

The spelling of 30233223020 in words is "thirty billion, two hundred thirty-three million, two hundred twenty-three thousand, twenty".