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31013213313110 = 257977574178989
BaseRepresentation
bin1110000110100110100111…
…00100000001100001010110
311001210211112011022001000012
413003103103210001201112
513031110030102004420
6145543135024520222
76350426223426050
oct703232344014126
9131724464261005
1031013213313110
1199776a2447726
12358a69a480072
13143c6c2045652
147930946088d0
1538bad157adc5
hex1c34d3901856

31013213313110 has 64 divisors (see below), whose sum is σ = 63875843602560. Its totient is φ = 10620233594880.

The previous prime is 31013213313097. The next prime is 31013213313127. The reversal of 31013213313110 is 1131331231013.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 392587496 + ... + 392666484.

It is an arithmetic number, because the mean of its divisors is an integer number (998060056290).

Almost surely, 231013213313110 is an apocalyptic number.

31013213313110 is an abundant number, since it is smaller than the sum of its proper divisors (32862630289450).

31013213313110 is a wasteful number, since it uses less digits than its factorization.

31013213313110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85721.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 31013213313110 its reverse (1131331231013), we get a palindrome (32144544544123).

The spelling of 31013213313110 in words is "thirty-one trillion, thirteen billion, two hundred thirteen million, three hundred thirteen thousand, one hundred ten".

Divisors: 1 2 5 7 10 14 35 70 977 1954 4885 5741 6839 9770 11482 13678 28705 34195 40187 57410 68390 78989 80374 157978 200935 394945 401870 552923 789890 1105846 2764615 5529230 5608957 11217914 28044785 39262699 56089570 77172253 78525398 154344506 196313495 385861265 392626990 453475849 540205771 771722530 906951698 1080411542 2267379245 2701028855 3174330943 4534758490 5402057710 6348661886 15871654715 31743309430 443045904473 886091808946 2215229522365 3101321331311 4430459044730 6202642662622 15506606656555 31013213313110