Base | Representation |
---|---|
bin | 11100001000110011… |
… | …001010011110001000 |
3 | 2212222112221222211000 |
4 | 130020303022132020 |
5 | 443333333313112 |
6 | 21513540335000 |
7 | 2116456112562 |
oct | 341063123610 |
9 | 85875858730 |
10 | 30212401032 |
11 | 118a4127080 |
12 | 5a320a4460 |
13 | 2b063a1a98 |
14 | 1668738332 |
15 | bbc5d27dc |
hex | 708cca788 |
30212401032 has 128 divisors (see below), whose sum is σ = 91696003200. Its totient is φ = 9140947200.
The previous prime is 30212401013. The next prime is 30212401039. The reversal of 30212401032 is 23010421203.
It is a super-2 number, since 2×302124010322 (a number of 22 digits) contains 22 as substring.
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 = 30212400996 and 30212401014.
It is not an unprimeable number, because it can be changed into a prime (30212401039) 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, 1560918 + ... + 1580154.
It is an arithmetic number, because the mean of its divisors is an integer number (716375025).
Almost surely, 230212401032 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 30212401032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45848001600).
30212401032 is an abundant number, since it is smaller than the sum of its proper divisors (61483602168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30212401032 is a wasteful number, since it uses less digits than its factorization.
30212401032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19924 (or 19914 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 30212401032 its reverse (23010421203), we get a palindrome (53222822235).
The spelling of 30212401032 in words is "thirty billion, two hundred twelve million, four hundred one thousand, thirty-two".
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