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231013120200 = 23352528172907
BaseRepresentation
bin1101011100100101110…
…1000111100011001000
3211002021200221102111220
43113021131013203020
512241103324321300
6254043112522040
722455502060032
oct3271135074310
9732250842456
10231013120200
1189a7697a455
12389319b0320
1318a27566285
14b276cd0c52
156020ec1da0
hex35c97478c8

231013120200 has 96 divisors (see below), whose sum is σ = 716286104160. Its totient is φ = 61590988800.

The previous prime is 231013120193. The next prime is 231013120213. The reversal of 231013120200 is 2021310132.

231013120200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231013120200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3132147 + ... + 3205053.

It is an arithmetic number, because the mean of its divisors is an integer number (7461313585).

Almost surely, 2231013120200 is an apocalyptic number.

231013120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231013120200 is an abundant number, since it is smaller than the sum of its proper divisors (485272983960).

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

231013120200 is a wasteful number, since it uses less digits than its factorization.

231013120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78207 (or 78198 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 231013120200 its reverse (2021310132), we get a palindrome (233034430332).

The spelling of 231013120200 in words is "two hundred thirty-one billion, thirteen million, one hundred twenty thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 150 200 300 600 5281 10562 15843 21124 26405 31686 42248 52810 63372 72907 79215 105620 126744 132025 145814 158430 211240 218721 264050 291628 316860 364535 396075 437442 528100 583256 633720 729070 792150 874884 1056200 1093605 1458140 1584300 1749768 1822675 2187210 2916280 3168600 3645350 4374420 5468025 7290700 8748840 10936050 14581400 21872100 43744200 385021867 770043734 1155065601 1540087468 1925109335 2310131202 3080174936 3850218670 4620262404 5775328005 7700437340 9240524808 9625546675 11550656010 15400874680 19251093350 23101312020 28876640025 38502186700 46202624040 57753280050 77004373400 115506560100 231013120200