Base | Representation |
---|---|
bin | 11100000100000001… |
… | …010011110011110100 |
3 | 2212202222002112112102 |
4 | 130010001103303310 |
5 | 443202322120340 |
6 | 21501554041232 |
7 | 2114463446201 |
oct | 340401236364 |
9 | 85688075472 |
10 | 30132223220 |
11 | 11862944320 |
12 | 5a0b279218 |
13 | 2ac28ab7a8 |
14 | 165bc26ca8 |
15 | bb5546215 |
hex | 704053cf4 |
30132223220 has 48 divisors (see below), whose sum is σ = 71410550400. Its totient is φ = 10579336320.
The previous prime is 30132223183. The next prime is 30132223267. The reversal of 30132223220 is 2232223103.
It is a super-4 number, since 4×301322232204 (a number of 43 digits) contains 4444 as substring.
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 = 30132223192 and 30132223201.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2355080 + ... + 2367839.
It is an arithmetic number, because the mean of its divisors is an integer number (1487719800).
Almost surely, 230132223220 is an apocalyptic number.
It is an amenable number.
30132223220 is an abundant number, since it is smaller than the sum of its proper divisors (41278327180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30132223220 is a wasteful number, since it uses less digits than its factorization.
30132223220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4722968 (or 4722966 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 20.
Adding to 30132223220 its reverse (2232223103), we get a palindrome (32364446323).
It can be divided in two parts, 30132 and 223220, that added together give a palindrome (253352).
The spelling of 30132223220 in words is "thirty billion, one hundred thirty-two million, two hundred twenty-three thousand, two hundred twenty".
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