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1312220204310 = 235311410989467
BaseRepresentation
bin10011000110000110011…
…010110100110100010110
311122110001212211011002210
4103012012122310310112
5132444411333014220
62442454201014250
7163543016462241
oct23060632646426
94573055734083
101312220204310
114665671065a4
12192397a84386
1396984a6b672
1447724528258
1524201b916e0
hex131866b4d16

1312220204310 has 32 divisors (see below), whose sum is σ = 3250919734272. Its totient is φ = 338637471840.

The previous prime is 1312220204297. The next prime is 1312220204329. The reversal of 1312220204310 is 134020222131.

It is a super-2 number, since 2×13122202043102 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705493804 + ... + 705495663.

It is an arithmetic number, because the mean of its divisors is an integer number (101591241696).

Almost surely, 21312220204310 is an apocalyptic number.

1312220204310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312220204310 is an abundant number, since it is smaller than the sum of its proper divisors (1938699529962).

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

1312220204310 is a wasteful number, since it uses less digits than its factorization.

1312220204310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410989508.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1312220204310 its reverse (134020222131), we get a palindrome (1446240426441).

The spelling of 1312220204310 in words is "one trillion, three hundred twelve billion, two hundred twenty million, two hundred four thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 1410989467 2821978934 4232968401 7054947335 8465936802 14109894670 21164842005 42329684010 43740673477 87481346954 131222020431 218703367385 262444040862 437406734770 656110102155 1312220204310