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13231001330 = 251323100133
BaseRepresentation
bin11000101001010000…
…10000111011110010
31021011002110111201022
430110220100323302
5204044114020310
610024522135442
7645606440621
oct142450207362
937132414638
1013231001330
11567a612148
122693051582
13132b1c1991
148d72db6b8
15526881a55
hex314a10ef2

13231001330 has 8 divisors (see below), whose sum is σ = 23815802412. Its totient is φ = 5292400528.

The previous prime is 13231001327. The next prime is 13231001339. The reversal of 13231001330 is 3310013231.

It can be written as a sum of positive squares in 2 ways, for example, as 11269308649 + 1961692681 = 106157^2 + 44291^2 .

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

It is a super-3 number, since 3×132310013303 (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13231001299 and 13231001308.

It is not an unprimeable number, because it can be changed into a prime (13231001339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661550057 + ... + 661550076.

Almost surely, 213231001330 is an apocalyptic number.

13231001330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13231001330 is a deficient number, since it is larger than the sum of its proper divisors (10584801082).

13231001330 is a wasteful number, since it uses less digits than its factorization.

13231001330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323100140.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 13231001330 its reverse (3310013231), we get a palindrome (16541014561).

The spelling of 13231001330 in words is "thirteen billion, two hundred thirty-one million, one thousand, three hundred thirty".

Divisors: 1 2 5 10 1323100133 2646200266 6615500665 13231001330