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131100322012 = 221119199788033
BaseRepresentation
bin111101000011000110…
…0000010100011011100
3110112101121101101122221
41322012030002203130
54121443140301022
6140120542515124
712320534231152
oct1720614024334
9415347341587
10131100322012
1150665794370
12214a9295aa4
13c493b38c4a
1464b968d3d2
15362475ecc7
hex1e863028dc

131100322012 has 48 divisors (see below), whose sum is σ = 264779424000. Its totient is φ = 56170920960.

The previous prime is 131100321973. The next prime is 131100322019. The reversal of 131100322012 is 210223001131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131100322019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227653 + ... + 560380.

It is an arithmetic number, because the mean of its divisors is an integer number (5516238000).

Almost surely, 2131100322012 is an apocalyptic number.

It is an amenable number.

131100322012 is an abundant number, since it is smaller than the sum of its proper divisors (133679101988).

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

131100322012 is a wasteful number, since it uses less digits than its factorization.

131100322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788266 (or 788264 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131100322012 its reverse (210223001131), we get a palindrome (341323323143).

The spelling of 131100322012 in words is "one hundred thirty-one billion, one hundred million, three hundred twenty-two thousand, twelve".

Divisors: 1 2 4 11 19 22 38 44 76 199 209 398 418 796 836 2189 3781 4378 7562 8756 15124 41591 83182 166364 788033 1576066 3152132 8668363 14972627 17336726 29945254 34673452 59890508 156818567 164698897 313637134 329397794 627274268 658795588 1725004237 2979552773 3450008474 5959105546 6900016948 11918211092 32775080503 65550161006 131100322012