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13231323130 = 251453910621
BaseRepresentation
bin11000101001010010…
…11111011111111010
31021011010001212010211
430110221133133322
5204044204320010
610024533101334
7645612251044
oct142451373772
937133055124
1013231323130
11567a8119a3
12269318784a
13132b2a52ac
148d7382a94
155268e708a
hex314a5f7fa

13231323130 has 16 divisors (see below), whose sum is σ = 23832798984. Its totient is φ = 5288880960.

The previous prime is 13231323107. The next prime is 13231323179. The reversal of 13231323130 is 3132313231.

It can be written as a sum of positive squares in 4 ways, for example, as 13177432849 + 53890281 = 114793^2 + 7341^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440781 + ... + 469840.

Almost surely, 213231323130 is an apocalyptic number.

13231323130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13231323130 is a deficient number, since it is larger than the sum of its proper divisors (10601475854).

13231323130 is a wasteful number, since it uses less digits than its factorization.

13231323130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912081.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13231323130 its reverse (3132313231), we get a palindrome (16363636361).

The spelling of 13231323130 in words is "thirteen billion, two hundred thirty-one million, three hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 1453 2906 7265 14530 910621 1821242 4553105 9106210 1323132313 2646264626 6615661565 13231323130