Base | Representation |
---|---|
bin | 11100010000001000… |
… | …000001101000101101 |
3 | 2220022010020102202010 |
4 | 130100020001220231 |
5 | 444111314413011 |
6 | 21534050551433 |
7 | 2122510612065 |
oct | 342010015055 |
9 | 86263212663 |
10 | 30335310381 |
11 | 11957545752 |
12 | 5a67298579 |
13 | 2b259a6ccc |
14 | 167abb03a5 |
15 | bc82b01a6 |
hex | 710201a2d |
30335310381 has 16 divisors (see below), whose sum is σ = 41008124160. Its totient is φ = 19943112960.
The previous prime is 30335310373. The next prime is 30335310419. The reversal of 30335310381 is 18301353303.
It is not a de Polignac number, because 30335310381 - 23 = 30335310373 is a prime.
It is a super-2 number, since 2×303353103812 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30331310381) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2463961 + ... + 2476241.
It is an arithmetic number, because the mean of its divisors is an integer number (2563007760).
Almost surely, 230335310381 is an apocalyptic number.
It is an amenable number.
30335310381 is a deficient number, since it is larger than the sum of its proper divisors (10672813779).
30335310381 is a wasteful number, since it uses less digits than its factorization.
30335310381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23636.
The product of its (nonzero) digits is 9720, while the sum is 30.
Adding to 30335310381 its reverse (18301353303), we get a palindrome (48636663684).
The spelling of 30335310381 in words is "thirty billion, three hundred thirty-five million, three hundred ten thousand, three hundred eighty-one".
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