Base | Representation |
---|---|
bin | 1101101111010100101101… |
… | …10111101001111100111100 |
3 | 10221222100212222212010110022 |
4 | 12313222112313221330330 |
5 | 12430003400232212340 |
6 | 144131451313431312 |
7 | 6235561340163005 |
oct | 667522667517474 |
9 | 127870788763408 |
10 | 30213331132220 |
11 | 96994468451a5 |
12 | 347b66756b538 |
13 | 13b214960b332 |
14 | 766493b921ac |
15 | 375db87ad3b5 |
hex | 1b7a96de9f3c |
30213331132220 has 96 divisors (see below), whose sum is σ = 65193280488000. Its totient is φ = 11754740367360.
The previous prime is 30213331132213. The next prime is 30213331132223. The reversal of 30213331132220 is 2223113331203.
It is a self number, because there is not a number n which added to its sum of digits gives 30213331132220.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30213331132223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 399731072 + ... + 399806648.
It is an arithmetic number, because the mean of its divisors is an integer number (679096671750).
Almost surely, 230213331132220 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 30213331132220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32596640244000).
30213331132220 is an abundant number, since it is smaller than the sum of its proper divisors (34979949355780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30213331132220 is a wasteful number, since it uses less digits than its factorization.
30213331132220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77103 (or 77101 counting only the distinct ones).
The product of its (nonzero) digits is 3888, while the sum is 26.
Adding to 30213331132220 its reverse (2223113331203), we get a palindrome (32436444463423).
The spelling of 30213331132220 in words is "thirty trillion, two hundred thirteen billion, three hundred thirty-one million, one hundred thirty-two thousand, two hundred twenty".
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