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13530425223 = 372293838287
BaseRepresentation
bin11001001100111100…
…11110011110000111
31021220221212211002010
430212132132132013
5210202242101343
610114335545303
7656203500600
oct144636363607
937827784063
1013530425223
115813632807
12275738b233
13137824a493
14924da0da7
15542cc9d33
hex32679e787

13530425223 has 48 divisors (see below), whose sum is σ = 21768929280. Its totient is φ = 7444672704.

The previous prime is 13530425221. The next prime is 13530425263. The reversal of 13530425223 is 32252403531.

It is not a de Polignac number, because 13530425223 - 21 = 13530425221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530425221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1628586 + ... + 1636872.

It is an arithmetic number, because the mean of its divisors is an integer number (453519360).

Almost surely, 213530425223 is an apocalyptic number.

13530425223 is a deficient number, since it is larger than the sum of its proper divisors (8238504057).

13530425223 is a wasteful number, since it uses less digits than its factorization.

13530425223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8716 (or 8709 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 13530425223 its reverse (32252403531), we get a palindrome (45782828754).

The spelling of 13530425223 in words is "thirteen billion, five hundred thirty million, four hundred twenty-five thousand, two hundred twenty-three".

Divisors: 1 3 7 21 29 49 87 147 203 383 609 1149 1421 2681 4263 8043 8287 11107 18767 24861 33321 56301 58009 77749 174027 233247 240323 406063 544243 720969 1218189 1632729 1682261 3173921 5046783 9521763 11775827 22217447 35327481 66652341 92043709 155522129 276131127 466566387 644305963 1932917889 4510141741 13530425223