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1430505245 = 51353617673
BaseRepresentation
bin101010101000011…
…1100011100011101
310200200202012021202
41111100330130131
510412202131440
6353540405245
750310044141
oct12520743435
93620665252
101430505245
11674534844
1233b0a6825
1319a49c710
14d7db3221
15858bd615
hex5543c71d

1430505245 has 32 divisors (see below), whose sum is σ = 1889389152. Its totient is φ = 1033224192.

The previous prime is 1430505233. The next prime is 1430505247. The reversal of 1430505245 is 5425050341.

It can be written as a sum of positive squares in 16 ways, for example, as 932813764 + 497691481 = 30542^2 + 22309^2 .

It is not a de Polignac number, because 1430505245 - 214 = 1430488861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430505247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2125229 + ... + 2125901.

It is an arithmetic number, because the mean of its divisors is an integer number (59043411).

Almost surely, 21430505245 is an apocalyptic number.

It is an amenable number.

1430505245 is a deficient number, since it is larger than the sum of its proper divisors (458883907).

1430505245 is a wasteful number, since it uses less digits than its factorization.

1430505245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1430505245 is about 37822.0206361321. The cubic root of 1430505245 is about 1126.7558411944.

Adding to 1430505245 its reverse (5425050341), we get a palindrome (6855555586).

The spelling of 1430505245 in words is "one billion, four hundred thirty million, five hundred five thousand, two hundred forty-five".

Divisors: 1 5 13 53 65 265 617 673 689 3085 3365 3445 8021 8749 32701 35669 40105 43745 163505 178345 415241 425113 463697 2076205 2125565 2318485 5398133 22007773 26990665 110038865 286101049 1430505245