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31211311313096 = 23233737791213153
BaseRepresentation
bin1110001100010111100110…
…00111111011000011001000
311002111202211221122002222122
413012023303013323003020
513042331231144004341
6150214140052310412
76400641250563365
oct706136307730310
9132452757562878
1031211311313096
119a43708617092
123600b65012408
1314552a22b0815
1479c8c7c6146c
15391d27a4994b
hex1c62f31fb0c8

31211311313096 has 64 divisors (see below), whose sum is σ = 62732678601600. Its totient is φ = 14519857195008.

The previous prime is 31211311313089. The next prime is 31211311313107. The reversal of 31211311313096 is 69031311311213.

It is a super-2 number, since 2×312113113130962 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25120856 + ... + 26334008.

It is an arithmetic number, because the mean of its divisors is an integer number (980198103150).

Almost surely, 231211311313096 is an apocalyptic number.

It is an amenable number.

31211311313096 is an abundant number, since it is smaller than the sum of its proper divisors (31521367288504).

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

31211311313096 is a wasteful number, since it uses less digits than its factorization.

31211311313096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216998 (or 1216994 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The spelling of 31211311313096 in words is "thirty-one trillion, two hundred eleven billion, three hundred eleven million, three hundred thirteen thousand, ninety-six".

Divisors: 1 2 4 8 23 37 46 74 92 148 184 296 851 1702 3404 3779 6808 7558 15116 30232 86917 139823 173834 279646 347668 559292 695336 1118584 1213153 2426306 3215929 4852612 6431858 9705224 12863716 25727432 27902519 44886661 55805038 89773322 111610076 179546644 223220152 359093288 1032393203 2064786406 4129572812 4584505187 8259145624 9169010374 18338020748 36676041496 105443619301 169626691919 210887238602 339253383838 421774477204 678506767676 843548954408 1357013535352 3901413914137 7802827828274 15605655656548 31211311313096