| Base | Representation |
|---|---|
| bin | 11100000010001110… |
| … | …000110110000110100 |
| 3 | 2212200212021012220220 |
| 4 | 130002032012300310 |
| 5 | 443122104220340 |
| 6 | 21454554454340 |
| 7 | 2113645655433 |
| oct | 340216066064 |
| 9 | 85625235826 |
| 10 | 30102023220 |
| 11 | 11847897645 |
| 12 | 5a011343b0 |
| 13 | 2ab9566779 |
| 14 | 1657c0511a |
| 15 | bb2a7ced0 |
| hex | 702386c34 |
30102023220 has 96 divisors (see below), whose sum is σ = 85391107200. Its totient is φ = 7922264064.
The previous prime is 30102023219. The next prime is 30102023221. The reversal of 30102023220 is 2232020103.
It is an interprime number because it is at equal distance from previous prime (30102023219) and next prime (30102023221).
It is a super-2 number, since 2×301020232202 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 30102023220.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30102023221) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3033507 + ... + 3043413.
It is an arithmetic number, because the mean of its divisors is an integer number (889490700).
Almost surely, 230102023220 is an apocalyptic number.
30102023220 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 30102023220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42695553600).
30102023220 is an abundant number, since it is smaller than the sum of its proper divisors (55289083980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30102023220 is a wasteful number, since it uses less digits than its factorization.
30102023220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10577 (or 10575 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 15.
Adding to 30102023220 its reverse (2232020103), we get a palindrome (32334043323).
The spelling of 30102023220 in words is "thirty billion, one hundred two million, twenty-three thousand, two hundred twenty".
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