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30144002405 = 5115915161519
BaseRepresentation
bin11100000100101110…
…001111100101100101
32212210210020222112112
4130010232033211211
5443213331034110
621503054330405
72114665535636
oct340456174545
985723228475
1030144002405
111186955a190
125a131b9a05
132ac517411a
14165d61188d
15bb65c1405
hex704b8f965

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".

Divisors: 1 5 11 55 59 151 295 649 755 1661 3245 8305 8909 44545 61519 97999 307595 489995 676709 3383545 3629621 9289369 18148105 39925831 46446845 102183059 199629155 510915295 548072771 2740363855 6028800481 30144002405