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1331212010344 = 23243768281289
BaseRepresentation
bin10011010111110010011…
…010110100001101101000
311201021002110020212020021
4103113302122310031220
5133302310233312334
62455314513210224
7165114450250156
oct23276232641550
94637073225207
101331212010344
11473622525567
12195bb8260974
13986c05ca608
144860696c3d6
152496415d3b4
hex135f26b4368

1331212010344 has 16 divisors (see below), whose sum is σ = 2497046775300. Its totient is φ = 665332870272.

The previous prime is 1331212010281. The next prime is 1331212010347. The reversal of 1331212010344 is 4430102121331.

It can be written as a sum of positive squares in 2 ways, for example, as 1297690062244 + 33521948100 = 1139162^2 + 183090^2 .

It is a super-2 number, since 2×13312120103442 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331212010347) 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, 34121149 + ... + 34160140.

Almost surely, 21331212010344 is an apocalyptic number.

It is an amenable number.

1331212010344 is a deficient number, since it is larger than the sum of its proper divisors (1165834764956).

1331212010344 is a wasteful number, since it uses less digits than its factorization.

1331212010344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68283732 (or 68283728 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1331212010344 its reverse (4430102121331), we get a palindrome (5761314131675).

The spelling of 1331212010344 in words is "one trillion, three hundred thirty-one billion, two hundred twelve million, ten thousand, three hundred forty-four".

Divisors: 1 2 4 8 2437 4874 9748 19496 68281289 136562578 273125156 546250312 166401501293 332803002586 665606005172 1331212010344