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131115022860 = 223523360715451
BaseRepresentation
bin111101000011100010…
…0000111101000001100
3110112102122001021102210
41322013010013220030
54122010421212420
6140122225550420
712321103206603
oct1720704075014
9415378037383
10131115022860
1150673015328
12214b21a5410
13c496bb5383
1464bb5d8a3a
153625bb59e0
hex1e87107a0c

131115022860 has 96 divisors (see below), whose sum is σ = 369329006592. Its totient is φ = 34754342400.

The previous prime is 131115022853. The next prime is 131115022937. The reversal of 131115022860 is 68220511131.

It is a super-2 number, since 2×1311150228602 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 8478135 + ... + 8493585.

It is an arithmetic number, because the mean of its divisors is an integer number (3847177152).

Almost surely, 2131115022860 is an apocalyptic number.

131115022860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131115022860 is an abundant number, since it is smaller than the sum of its proper divisors (238213983732).

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

131115022860 is a wasteful number, since it uses less digits than its factorization.

131115022860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16303 (or 16301 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

Adding to 131115022860 its reverse (68220511131), we get a palindrome (199335533991).

The spelling of 131115022860 in words is "one hundred thirty-one billion, one hundred fifteen million, twenty-two thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 233 466 607 699 932 1165 1214 1398 1821 2330 2428 2796 3035 3495 3642 4660 6070 6990 7284 9105 12140 13980 15451 18210 30902 36420 46353 61804 77255 92706 141431 154510 185412 231765 282862 309020 424293 463530 565724 707155 848586 927060 1414310 1697172 2121465 2828620 3600083 4242930 7200166 8485860 9378757 10800249 14400332 18000415 18757514 21600498 28136271 36000830 37515028 43200996 46893785 54001245 56272542 72001660 93787570 108002490 112545084 140681355 187575140 216004980 281362710 562725420 2185250381 4370500762 6555751143 8741001524 10926251905 13111502286 21852503810 26223004572 32778755715 43705007620 65557511430 131115022860