Base | Representation |
---|---|
bin | 11100101001000000… |
… | …101111101111111001 |
3 | 2221101012212202102111 |
4 | 130221000233233321 |
5 | 1000440211120010 |
6 | 22043323532321 |
7 | 2136040522543 |
oct | 345100575771 |
9 | 87335782374 |
10 | 30752832505 |
11 | 1205119925a |
12 | 5b6308a0a1 |
13 | 2b91341c15 |
14 | 16ba416693 |
15 | beec8558a |
hex | 72902fbf9 |
30752832505 has 16 divisors (see below), whose sum is σ = 38260224000. Its totient is φ = 23704649280.
The previous prime is 30752832503. The next prime is 30752832511. The reversal of 30752832505 is 50523825703.
It is not a de Polignac number, because 30752832505 - 21 = 30752832503 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30752832503) 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, 397705 + ... + 468694.
It is an arithmetic number, because the mean of its divisors is an integer number (2391264000).
Almost surely, 230752832505 is an apocalyptic number.
It is an amenable number.
30752832505 is a deficient number, since it is larger than the sum of its proper divisors (7507391495).
30752832505 is a wasteful number, since it uses less digits than its factorization.
30752832505 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 866664.
The product of its (nonzero) digits is 252000, while the sum is 40.
The spelling of 30752832505 in words is "thirty billion, seven hundred fifty-two million, eight hundred thirty-two thousand, five hundred five".
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