Base | Representation |
---|---|
bin | 11100000100101110… |
… | …001111100101100101 |
3 | 2212210210020222112112 |
4 | 130010232033211211 |
5 | 443213331034110 |
6 | 21503054330405 |
7 | 2114665535636 |
oct | 340456174545 |
9 | 85723228475 |
10 | 30144002405 |
11 | 1186955a190 |
12 | 5a131b9a05 |
13 | 2ac517411a |
14 | 165d61188d |
15 | bb65c1405 |
hex | 704b8f965 |
30144002405 has 32 divisors (see below), whose sum is σ = 40396492800. Its totient is φ = 21408264000.
The previous prime is 30144002393. The next prime is 30144002419. The reversal of 30144002405 is 50420044103.
It is not a de Polignac number, because 30144002405 - 218 = 30143740261 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 459236 + ... + 520754.
It is an arithmetic number, because the mean of its divisors is an integer number (1262390400).
Almost surely, 230144002405 is an apocalyptic number.
It is an amenable number.
30144002405 is a deficient number, since it is larger than the sum of its proper divisors (10252490395).
30144002405 is a wasteful number, since it uses less digits than its factorization.
30144002405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61745.
The product of its (nonzero) digits is 1920, while the sum is 23.
Adding to 30144002405 its reverse (50420044103), we get a palindrome (80564046508).
The spelling of 30144002405 in words is "thirty billion, one hundred forty-four million, two thousand, four hundred five".
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