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13531202253 = 333713544747
BaseRepresentation
bin11001001101000010…
…11100001011001101
31021221000100021222000
430212201130023031
5210202441433003
610114404342513
7656213215152
oct144641341315
937830307860
1013531202253
115814013588
1227576a4a39
13137846006a
14925124229
15542dd01a3
hex32685c2cd

13531202253 has 16 divisors (see below), whose sum is σ = 20588016960. Its totient is φ = 8776995408.

The previous prime is 13531202231. The next prime is 13531202263. The reversal of 13531202253 is 35220213531.

It is a happy number.

It is not a de Polignac number, because 13531202253 - 217 = 13531071181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531202263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6771375 + ... + 6773372.

It is an arithmetic number, because the mean of its divisors is an integer number (1286751060).

Almost surely, 213531202253 is an apocalyptic number.

It is an amenable number.

13531202253 is a deficient number, since it is larger than the sum of its proper divisors (7056814707).

13531202253 is a wasteful number, since it uses less digits than its factorization.

13531202253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13544793 (or 13544787 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 13531202253 its reverse (35220213531), we get a palindrome (48751415784).

The spelling of 13531202253 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, two hundred fifty-three".

Divisors: 1 3 9 27 37 111 333 999 13544747 40634241 121902723 365708169 501155639 1503466917 4510400751 13531202253