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231143404341132 = 2232172737091379879
BaseRepresentation
bin110100100011100101000100…
…100000100000011110001100
31010022102002112021022120101100
4310203211010200200132030
5220244023143002404012
62135333451455543100
766454363015400133
oct6443450440403614
91108362467276340
10231143404341132
11677164049442a8
1221b1118252aa90
139bc896394168a
144111586c2291a
151bac8851148dc
hexd2394482078c

231143404341132 has 72 divisors (see below), whose sum is σ = 618651231962400. Its totient is φ = 72515260343808.

The previous prime is 231143404341089. The next prime is 231143404341203.

231143404341132 is a `hidden beast` number, since 2 + 3 + 1 + 143 + 40 + 4 + 341 + 132 = 666.

231143404341132 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166819969 + ... + 168199847.

It is an arithmetic number, because the mean of its divisors is an integer number (8592378221700).

Almost surely, 2231143404341132 is an apocalyptic number.

It is an amenable number.

231143404341132 is an abundant number, since it is smaller than the sum of its proper divisors (387507827621268).

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

231143404341132 is a wasteful number, since it uses less digits than its factorization.

231143404341132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653615 (or 1653610 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

It can be divided in two parts, 23114340 and 4341132, that added together give a palindrome (27455472).

The spelling of 231143404341132 in words is "two hundred thirty-one trillion, one hundred forty-three billion, four hundred four million, three hundred forty-one thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 612 273709 547418 821127 1094836 1379879 1642254 2463381 2759758 3284508 4139637 4653053 4926762 5519516 8279274 9306106 9853524 12418911 13959159 16558548 18612212 23457943 24837822 27918318 41877477 46915886 49675644 55836636 70373829 83754954 93831772 140747658 167509908 211121487 281495316 422242974 844485948 377685301211 755370602422 1133055903633 1510741204844 2266111807266 3399167710899 4532223614532 6420650120587 6798335421798 12841300241174 13596670843596 19261950361761 25682600482348 38523900723522 57785851085283 77047801447044 115571702170566 231143404341132