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1230212330 = 25968912697
BaseRepresentation
bin100100101010011…
…1000110011101010
310011201212021001122
41021110320303222
510004413243310
6322023415242
742325426604
oct11124706352
93151767048
101230212330
11581471806
122a3bb4522
13167b41cb9
14b9556174
1573007555
hex49538cea

1230212330 has 16 divisors (see below), whose sum is σ = 2214785160. Its totient is φ = 491995392.

The previous prime is 1230212317. The next prime is 1230212341. The reversal of 1230212330 is 332120321.

It can be written as a sum of positive squares in 4 ways, for example, as 846169921 + 384042409 = 29089^2 + 19597^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1230212299 and 1230212308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90542 + ... + 103238.

Almost surely, 21230212330 is an apocalyptic number.

1230212330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230212330 is a deficient number, since it is larger than the sum of its proper divisors (984572830).

1230212330 is a wasteful number, since it uses less digits than its factorization.

1230212330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22393.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1230212330 is about 35074.3828170932. The cubic root of 1230212330 is about 1071.5029190228.

Adding to 1230212330 its reverse (332120321), we get a palindrome (1562332651).

The spelling of 1230212330 in words is "one billion, two hundred thirty million, two hundred twelve thousand, three hundred thirty".

Divisors: 1 2 5 10 9689 12697 19378 25394 48445 63485 96890 126970 123021233 246042466 615106165 1230212330