Base | Representation |
---|---|
bin | 11100011100101000… |
… | …000011101110100001 |
3 | 2220211201212111122221 |
4 | 130130220003232201 |
5 | 1000024012043040 |
6 | 22010542031041 |
7 | 2130635335453 |
oct | 343450035641 |
9 | 86751774587 |
10 | 30545034145 |
11 | 11a5496a27a |
12 | 5b05578481 |
13 | 2b5a287202 |
14 | 169a9a42d3 |
15 | bdb8da74a |
hex | 71ca03ba1 |
30545034145 has 16 divisors (see below), whose sum is σ = 36934331328. Its totient is φ = 24249839040.
The previous prime is 30545034127. The next prime is 30545034193. The reversal of 30545034145 is 54143054503.
It is not a de Polignac number, because 30545034145 - 27 = 30545034017 is a prime.
It is a super-2 number, since 2×305450341452 (a number of 22 digits) contains 22 as substring.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30545034145.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324367 + ... + 407803.
It is an arithmetic number, because the mean of its divisors is an integer number (2308395708).
Almost surely, 230545034145 is an apocalyptic number.
It is an amenable number.
30545034145 is a deficient number, since it is larger than the sum of its proper divisors (6389297183).
30545034145 is a wasteful number, since it uses less digits than its factorization.
30545034145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 84000.
The product of its (nonzero) digits is 72000, while the sum is 34.
Adding to 30545034145 its reverse (54143054503), we get a palindrome (84688088648).
The spelling of 30545034145 in words is "thirty billion, five hundred forty-five million, thirty-four thousand, one hundred forty-five".
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