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131404353031020 = 223519611889622563
BaseRepresentation
bin11101111000001011110101…
…110010001100101101101100
3122020021010121021222222012210
4131320023311302030231230
5114210412103333443040
61143250154301130420
736451436236415166
oct3570136562145554
9566233537888183
10131404353031020
1138962300644113
12128a3063b59a10
1358424b9c88454
14246400c977936
15102d1de965480
hex7782f5c8cb6c

131404353031020 has 96 divisors (see below), whose sum is σ = 393646172532480. Its totient is φ = 32652677871360.

The previous prime is 131404353030983. The next prime is 131404353031123. The reversal of 131404353031020 is 20130353404131.

It is a happy number.

It is a super-2 number, since 2×1314043530310202 (a number of 29 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, 944741742 + ... + 944880821.

It is an arithmetic number, because the mean of its divisors is an integer number (4100480963880).

Almost surely, 2131404353031020 is an apocalyptic number.

131404353031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131404353031020 is an abundant number, since it is smaller than the sum of its proper divisors (262241819501460).

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

131404353031020 is a wasteful number, since it uses less digits than its factorization.

131404353031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889622655 (or 1889622653 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 131404353031020 in words is "one hundred thirty-one trillion, four hundred four billion, three hundred fifty-three million, thirty-one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 61 76 95 114 122 183 190 228 244 285 305 366 380 570 610 732 915 1140 1159 1220 1830 2318 3477 3660 4636 5795 6954 11590 13908 17385 23180 34770 69540 1889622563 3779245126 5668867689 7558490252 9448112815 11337735378 18896225630 22675470756 28344338445 35902828697 37792451260 56688676890 71805657394 107708486091 113377353780 115266976343 143611314788 179514143485 215416972182 230533952686 345800929029 359028286970 430833944364 461067905372 538542430455 576334881715 691601858058 718056573940 1077084860910 1152669763430 1383203716116 1729004645145 2154169721820 2190072550517 2305339526860 3458009290290 4380145101034 6570217651551 6916018580580 8760290202068 10950362752585 13140435303102 21900725505170 26280870606204 32851088257755 43801451010340 65702176515510 131404353031020