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13230290529 = 3223216672
BaseRepresentation
bin11000101001001011…
…00011011001100001
31021011001010101200100
430110211203121201
5204043423244104
610024455013013
7645600420411
oct142445433141
937131111610
1013230290529
11567a177105
12269296a169
13132b0032a1
148d7194641
15526791139
hex314963661

13230290529 has 27 divisors (see below), whose sum is σ = 19989424273. Its totient is φ = 8431645992.

The previous prime is 13230290509. The next prime is 13230290551. The reversal of 13230290529 is 92509203231.

The square root of 13230290529 is 115023.

It is a perfect power (a square), and thus also a powerful number.

13230290529 is a `hidden beast` number, since 13 + 2 + 30 + 2 + 90 + 529 = 666.

It is not a de Polignac number, because 13230290529 - 213 = 13230282337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13230290493 and 13230290502.

It is not an unprimeable number, because it can be changed into a prime (13230290509) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7935754 + ... + 7937420.

Almost surely, 213230290529 is an apocalyptic number.

13230290529 is the 115023-rd square number.

13230290529 is the 57512-nd centered octagonal number.

It is an amenable number.

13230290529 is a deficient number, since it is larger than the sum of its proper divisors (6759133744).

13230290529 is an frugal number, since it uses more digits than its factorization.

13230290529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386 (or 1693 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

Multiplying 13230290529 by its sum of digits (36), we get a square (476290459044 = 6901382).

The spelling of 13230290529 in words is "thirteen billion, two hundred thirty million, two hundred ninety thousand, five hundred twenty-nine".

Divisors: 1 3 9 23 69 207 529 1587 1667 4761 5001 15003 38341 115023 345069 881843 2645529 2778889 7936587 8336667 25010001 63914447 191743341 575230023 1470032281 4410096843 13230290529