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231534525412000 = 2553371564422469
BaseRepresentation
bin110100101001010001010101…
…001000111111001010100000
31010100210111002011121121101001
4310221101111020333022200
5220321430202001141000
62140233254221521344
766524550244551316
oct6451212510771240
91110714064547331
10231534525412000
1167857271558838
1221b74b38113254
139c267c590cba5
14412648bac80b6
151bb7b2729946a
hexd2945523f2a0

231534525412000 has 96 divisors (see below), whose sum is σ = 584255473336080. Its totient is φ = 90110734156800.

The previous prime is 231534525411961. The next prime is 231534525412087. The reversal of 231534525412000 is 214525435132.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 29228166190864 + 202306359221136 = 5406308^2 + 14223444^2 .

It is a super-4 number, since 4×2315345254120004 (a number of 59 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 782063235 + ... + 782359234.

Almost surely, 2231534525412000 is an apocalyptic number.

231534525412000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231534525412000 is an abundant number, since it is smaller than the sum of its proper divisors (352720947924080).

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

231534525412000 is a wasteful number, since it uses less digits than its factorization.

231534525412000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564422531 (or 1564422513 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 231534525412000 in words is "two hundred thirty-one trillion, five hundred thirty-four billion, five hundred twenty-five million, four hundred twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 37 40 50 74 80 100 125 148 160 185 200 250 296 370 400 500 592 740 800 925 1000 1184 1480 1850 2000 2960 3700 4000 4625 5920 7400 9250 14800 18500 29600 37000 74000 148000 1564422469 3128844938 6257689876 7822112345 12515379752 15644224690 25030759504 31288449380 39110561725 50061519008 57883631353 62576898760 78221123450 115767262706 125153797520 156442246900 195552808625 231534525412 250307595040 289418156765 312884493800 391105617250 463069050824 578836313530 625768987600 782211234500 926138101648 1157672627060 1251537975200 1447090783825 1564422469000 1852276203296 2315345254120 2894181567650 3128844938000 4630690508240 5788363135300 6257689876000 7235453919125 9261381016480 11576726270600 14470907838250 23153452541200 28941815676500 46306905082400 57883631353000 115767262706000 231534525412000