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31213023323010 = 2354318212940317
BaseRepresentation
bin1110001100011010110010…
…01010101110001110000010
311002111221021021002020002020
413012031121022232032002
513042343232432314020
6150215022010502310
76401031546456054
oct706153112561602
9132457237066066
1031213023323010
119a44406a42511
123601362434996
1314554b5ba3739
1479ca0b3918d4
15391dc7ec1c40
hex1c63592ae382

31213023323010 has 64 divisors (see below), whose sum is σ = 75176545181184. Its totient is φ = 8294043372800.

The previous prime is 31213023322979. The next prime is 31213023323017. The reversal of 31213023323010 is 1032332031213.

It is not an unprimeable number, because it can be changed into a prime (31213023323017) 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, 9145372 + ... + 12085688.

It is an arithmetic number, because the mean of its divisors is an integer number (1174633518456).

Almost surely, 231213023323010 is an apocalyptic number.

31213023323010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31213023323010 is an abundant number, since it is smaller than the sum of its proper divisors (43963521858174).

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

31213023323010 is a wasteful number, since it uses less digits than its factorization.

31213023323010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941579.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31213023323010 its reverse (1032332031213), we get a palindrome (32245355354223).

The spelling of 31213023323010 in words is "thirty-one trillion, two hundred thirteen billion, twenty-three million, three hundred twenty-three thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 431 821 862 1293 1642 2155 2463 2586 4105 4310 4926 6465 8210 12315 12930 24630 353851 707702 1061553 1769255 2123106 2940317 3538510 5307765 5880634 8820951 10615530 14701585 17641902 29403170 44104755 88209510 1267276627 2414000257 2534553254 3801829881 4828000514 6336383135 7242000771 7603659762 12070001285 12672766270 14484001542 19009149405 24140002570 36210003855 38018298810 72420007710 1040434110767 2080868221534 3121302332301 5202170553835 6242604664602 10404341107670 15606511661505 31213023323010