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13203230525105 = 521311239158191
BaseRepresentation
bin1100000000100001110111…
…0111011000011010110001
31201202012211211120220002212
43000020131313120122301
53212310204003300410
644025251432021505
72531621234512055
oct300103567303261
951665754526085
1013203230525105
114230505473255
121592a5b231895
1374a0a03730ba
1433907b199c65
1517d6a6538b05
hexc021ddd86b1

13203230525105 has 8 divisors (see below), whose sum is σ = 15851311592064. Its totient is φ = 10557627778800.

The previous prime is 13203230525101. The next prime is 13203230525167. The reversal of 13203230525105 is 50152503230231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13203230525105 - 22 = 13203230525101 is a prime.

It is a super-2 number, since 2×132032305251052 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13203230525101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619568441 + ... + 619589750.

It is an arithmetic number, because the mean of its divisors is an integer number (1981413949008).

Almost surely, 213203230525105 is an apocalyptic number.

It is an amenable number.

13203230525105 is a deficient number, since it is larger than the sum of its proper divisors (2648081066959).

13203230525105 is a wasteful number, since it uses less digits than its factorization.

13203230525105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239160327.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 13203230525105 its reverse (50152503230231), we get a palindrome (63355733755336).

The spelling of 13203230525105 in words is "thirteen trillion, two hundred three billion, two hundred thirty million, five hundred twenty-five thousand, one hundred five".

Divisors: 1 5 2131 10655 1239158191 6195790955 2640646105021 13203230525105