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13211231130 = 2325146791457
BaseRepresentation
bin11000100110111001…
…10110001110011010
31021002201021002002200
430103130312032122
5204024033344010
610022534311030
7645246416556
oct142334661632
937081232080
1013211231130
11566a439539
1226884b8476
13132708c036
148d4832866
15524c78cc0
hex31373639a

13211231130 has 24 divisors (see below), whose sum is σ = 34349201172. Its totient is φ = 3522994944.

The previous prime is 13211231129. The next prime is 13211231141. The reversal of 13211231130 is 3113211231.

13211231130 is a `hidden beast` number, since 1 + 321 + 1 + 2 + 311 + 30 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12879299169 + 331931961 = 113487^2 + 18219^2 .

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 11 ways as a sum of consecutive naturals, for example, 73395639 + ... + 73395818.

Almost surely, 213211231130 is an apocalyptic number.

13211231130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13211231130 is an abundant number, since it is smaller than the sum of its proper divisors (21137970042).

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

13211231130 is a wasteful number, since it uses less digits than its factorization.

13211231130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146791470 (or 146791467 counting only the distinct ones).

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

Adding to 13211231130 its reverse (3113211231), we get a palindrome (16324442361).

The spelling of 13211231130 in words is "thirteen billion, two hundred eleven million, two hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 146791457 293582914 440374371 733957285 880748742 1321123113 1467914570 2201871855 2642246226 4403743710 6605615565 13211231130