Base | Representation |
---|---|
bin | 11100001001010100… |
… | …000011011100111000 |
3 | 2220000011012000222100 |
4 | 130021110003130320 |
5 | 443343040214112 |
6 | 21514445223400 |
7 | 2116622312604 |
oct | 341124033470 |
9 | 86004160870 |
10 | 30221023032 |
11 | 118a8a859a2 |
12 | 5a34b61b60 |
13 | 2b08100365 |
14 | 1669940504 |
15 | bbd2372dc |
hex | 709503738 |
30221023032 has 24 divisors (see below), whose sum is σ = 81848604240. Its totient is φ = 10073674320.
The previous prime is 30221023003. The next prime is 30221023039. The reversal of 30221023032 is 23032012203.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (24).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 30221022996 and 30221023014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30221023039) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 209868144 + ... + 209868287.
It is an arithmetic number, because the mean of its divisors is an integer number (3410358510).
Almost surely, 230221023032 is an apocalyptic number.
It is an amenable number.
30221023032 is an abundant number, since it is smaller than the sum of its proper divisors (51627581208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30221023032 is a wasteful number, since it uses less digits than its factorization.
30221023032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 419736443 (or 419736436 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
Adding to 30221023032 its reverse (23032012203), we get a palindrome (53253035235).
The spelling of 30221023032 in words is "thirty billion, two hundred twenty-one million, twenty-three thousand, thirty-two".
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