Base | Representation |
---|---|
bin | 11100100000001101… |
… | …011011100000001001 |
3 | 2220222221000100021020 |
4 | 130200031123200021 |
5 | 1000134410200010 |
6 | 22020530503053 |
7 | 2132265406011 |
oct | 344015334011 |
9 | 86887010236 |
10 | 30605162505 |
11 | 11a858a8635 |
12 | 5b21734a89 |
13 | 2b6987a718 |
14 | 16a4976c41 |
15 | be1d16470 |
hex | 72035b809 |
30605162505 has 16 divisors (see below), whose sum is σ = 49006221504. Its totient is φ = 16310099520.
The previous prime is 30605162503. The next prime is 30605162507. The reversal of 30605162505 is 50526150603.
It is an interprime number because it is at equal distance from previous prime (30605162503) and next prime (30605162507).
It is not a de Polignac number, because 30605162505 - 21 = 30605162503 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30605162503) 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, 770854 + ... + 809583.
It is an arithmetic number, because the mean of its divisors is an integer number (3062888844).
Almost surely, 230605162505 is an apocalyptic number.
It is an amenable number.
30605162505 is a deficient number, since it is larger than the sum of its proper divisors (18401058999).
30605162505 is a wasteful number, since it uses less digits than its factorization.
30605162505 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1581736.
The product of its (nonzero) digits is 27000, while the sum is 33.
The spelling of 30605162505 in words is "thirty billion, six hundred five million, one hundred sixty-two thousand, five hundred five".
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