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31100012020022 = 211173712311825699
BaseRepresentation
bin1110001001001000010010…
…01010110100000100110110
311002010010120022101012120212
413010210021022310010312
513034020311034120042
6150051052010225422
76356621201315441
oct704441112640466
9132103508335525
1031100012020022
119a00494011950
1235a3483125272
13144794586565a
1479736a2a2658
1538deb1851482
hex1c49092b4136

31100012020022 has 64 divisors (see below), whose sum is σ = 55385837337600. Its totient is φ = 12934705190400.

The previous prime is 31100012020013. The next prime is 31100012020093. The reversal of 31100012020022 is 22002021000113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31100012019979 and 31100012020006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16121729 + ... + 17947427.

It is an arithmetic number, because the mean of its divisors is an integer number (865403708400).

Almost surely, 231100012020022 is an apocalyptic number.

31100012020022 is a deficient number, since it is larger than the sum of its proper divisors (24285825317578).

31100012020022 is a wasteful number, since it uses less digits than its factorization.

31100012020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826997.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31100012020022 its reverse (22002021000113), we get a palindrome (53102033020135).

The spelling of 31100012020022 in words is "thirty-one trillion, one hundred billion, twelve million, twenty thousand, twenty-two".

Divisors: 1 2 11 17 22 34 37 74 187 374 407 629 814 1231 1258 2462 6919 13541 13838 20927 27082 41854 45547 91094 230197 460394 501017 774299 1002034 1548598 1825699 3651398 8517289 17034578 20082689 31036883 40165378 62073766 67550863 135101726 341405713 682811426 743059493 1148364671 1486118986 2247435469 2296729342 4494870938 12632011381 24721790159 25264022762 38206402973 49443580318 76412805946 83155112353 166310224706 420270432703 840540865406 914706235883 1413636910001 1829412471766 2827273820002 15550006010011 31100012020022