Base | Representation |
---|---|
bin | 11100011011011000… |
… | …101000001100100101 |
3 | 2220210021200122001120 |
4 | 130123120220030211 |
5 | 1000003144241010 |
6 | 22004515444153 |
7 | 2130263343510 |
oct | 343330501445 |
9 | 86707618046 |
10 | 30524212005 |
11 | 11a441382a1 |
12 | 5aba5b6659 |
13 | 2b55b76811 |
14 | 1697d03d77 |
15 | bd9b75e70 |
hex | 71b628325 |
30524212005 has 32 divisors (see below), whose sum is σ = 55824089088. Its totient is φ = 13951828800.
The previous prime is 30524212003. The next prime is 30524212051. The reversal of 30524212005 is 50021242503.
It is not a de Polignac number, because 30524212005 - 21 = 30524212003 is a prime.
It is a super-2 number, since 2×305242120052 (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 (30524212001) 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, 842310 + ... + 877800.
It is an arithmetic number, because the mean of its divisors is an integer number (1744502784).
Almost surely, 230524212005 is an apocalyptic number.
30524212005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30524212005 is a deficient number, since it is larger than the sum of its proper divisors (25299877083).
30524212005 is a wasteful number, since it uses less digits than its factorization.
30524212005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43697.
The product of its (nonzero) digits is 2400, while the sum is 24.
Adding to 30524212005 its reverse (50021242503), we get a palindrome (80545454508).
The spelling of 30524212005 in words is "thirty billion, five hundred twenty-four million, two hundred twelve thousand, five".
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