Search a number
-
+
30221001000 = 23325319315701
BaseRepresentation
bin11100001001010011…
…111110000100101000
32220000011010220202100
4130021103332010220
5443343034013000
621514444533400
72116622161431
oct341123760450
986004126670
1030221001000
11118a8a70393
125a34b51260
132b080c3318
141669936488
15bbd230a00
hex7094fe128

30221001000 has 384 divisors, whose sum is σ = 111011097600. Its totient is φ = 7387200000.

The previous prime is 30221000983. The next prime is 30221001089. The reversal of 30221001000 is 10012203.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5298150 + ... + 5303850.

It is an arithmetic number, because the mean of its divisors is an integer number (289091400).

Almost surely, 230221001000 is an apocalyptic number.

30221001000 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 30221001000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55505548800).

30221001000 is an abundant number, since it is smaller than the sum of its proper divisors (80790096600).

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

30221001000 is a wasteful number, since it uses less digits than its factorization.

30221001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778 (or 5761 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 30221001000 its reverse (10012203), we get a palindrome (30231013203).

The spelling of 30221001000 in words is "thirty billion, two hundred twenty-one million, one thousand".