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13531203113 = 31467934669
BaseRepresentation
bin11001001101000010…
…11100011000101001
31021221000100100010212
430212201130120221
5210202441444423
610114404350505
7656213220521
oct144641343051
937830310125
1013531203113
11581401419a
1227576a5435
13137846057c
14925124681
15542dd0578
hex32685c629

13531203113 has 8 divisors (see below), whose sum is σ = 13997617920. Its totient is φ = 13066658640.

The previous prime is 13531203109. The next prime is 13531203181. The reversal of 13531203113 is 31130213531.

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

It is a cyclic number.

It is not a de Polignac number, because 13531203113 - 22 = 13531203109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13531203013) 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, 452858 + ... + 481811.

It is an arithmetic number, because the mean of its divisors is an integer number (1749702240).

Almost surely, 213531203113 is an apocalyptic number.

It is an amenable number.

13531203113 is a deficient number, since it is larger than the sum of its proper divisors (466414807).

13531203113 is an equidigital number, since it uses as much as digits as its factorization.

13531203113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935167.

The product of its (nonzero) digits is 810, while the sum is 23.

Adding to 13531203113 its reverse (31130213531), we get a palindrome (44661416644).

The spelling of 13531203113 in words is "thirteen billion, five hundred thirty-one million, two hundred three thousand, one hundred thirteen".

Divisors: 1 31 467 14477 934669 28974739 436490423 13531203113