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13110131232 = 253411241801
BaseRepresentation
bin11000011010110110…
…01011101000100000
31020211200000200010000
430031123023220200
5203322143144412
610004523340000
7642611163642
oct141533135040
936750020100
1013110131232
115618366700
12265a681600
13130c151a03
148c5236892
1551ae584dc
hex30d6cba20

13110131232 has 180 divisors, whose sum is σ = 42381333918. Its totient is φ = 3972672000.

The previous prime is 13110131219. The next prime is 13110131317. The reversal of 13110131232 is 23213101131.

It can be written as a sum of positive squares in only one way, i.e., 13097429136 + 12702096 = 114444^2 + 3564^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 292732 + ... + 334532.

Almost surely, 213110131232 is an apocalyptic number.

13110131232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13110131232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21190666959).

13110131232 is an abundant number, since it is smaller than the sum of its proper divisors (29271202686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13110131232 is a wasteful number, since it uses less digits than its factorization.

13110131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41845 (or 41817 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13110131232 its reverse (23213101131), we get a palindrome (36323232363).

The spelling of 13110131232 in words is "thirteen billion, one hundred ten million, one hundred thirty-one thousand, two hundred thirty-two".