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1313303212020 = 2235331541912203
BaseRepresentation
bin10011000111000110111…
…110001010111111110100
311122112212100200122101110
4103013012332022333310
5133004121110241040
62443153445355020
7163611610054152
oct23070676127764
94575770618343
101313303212020
11466a72475298
1219263a708a70
1396ac824cc27
14477c82c23d2
1524266cbc980
hex131c6f8aff4

1313303212020 has 96 divisors (see below), whose sum is σ = 3689341447680. Its totient is φ = 349063102080.

The previous prime is 1313303211953. The next prime is 1313303212021. The reversal of 1313303212020 is 202123033131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313303212021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107615239 + ... + 107627441.

It is an arithmetic number, because the mean of its divisors is an integer number (38430640080).

Almost surely, 21313303212020 is an apocalyptic number.

1313303212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313303212020 is an abundant number, since it is smaller than the sum of its proper divisors (2376038235660).

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

1313303212020 is a wasteful number, since it uses less digits than its factorization.

1313303212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17965 (or 17963 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1313303212020 its reverse (202123033131), we get a palindrome (1515426245151).

The spelling of 1313303212020 in words is "one trillion, three hundred thirteen billion, three hundred three million, two hundred twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 331 662 993 1324 1655 1986 3310 3972 4965 5419 6620 9930 10838 12203 16257 19860 21676 24406 27095 32514 36609 48812 54190 61015 65028 73218 81285 108380 122030 146436 162570 183045 244060 325140 366090 732180 1793689 3587378 4039193 5381067 7174756 8078386 8968445 10762134 12117579 16156772 17936890 20195965 21524268 24235158 26905335 35873780 40391930 48470316 53810670 60587895 66128057 80783860 107621340 121175790 132256114 198384171 242351580 264512228 330640285 396768342 661280570 793536684 991920855 1322561140 1983841710 3967683420 21888386867 43776773734 65665160601 87553547468 109441934335 131330321202 218883868670 262660642404 328325803005 437767737340 656651606010 1313303212020