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231514522043244 = 2231137280316911397
BaseRepresentation
bin110100101000111110101100…
…110110001100001101101100
31010100201120110002202012001120
4310220332230312030031230
5220321113220120340434
62140220145252140540
766523241451664056
oct6450765466141554
91110646402665046
10231514522043244
1167849837138820
1221b71095007750
139c24958625b0b
1441255111a68d6
151bb73560b5349
hexd28facd8c36c

231514522043244 has 96 divisors (see below), whose sum is σ = 605452941977856. Its totient is φ = 68235453492480.

The previous prime is 231514522043143. The next prime is 231514522043249. The reversal of 231514522043244 is 442340225415132.

It is a junction number, because it is equal to n+sod(n) for n = 231514522043196 and 231514522043205.

It is not an unprimeable number, because it can be changed into a prime (231514522043249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5234154 + ... + 22145550.

It is an arithmetic number, because the mean of its divisors is an integer number (6306801478936).

Almost surely, 2231514522043244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231514522043244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302726470988928).

231514522043244 is an abundant number, since it is smaller than the sum of its proper divisors (373938419934612).

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

231514522043244 is a wasteful number, since it uses less digits than its factorization.

231514522043244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16914255 (or 16914253 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 231514522043244 its reverse (442340225415132), we get a palindrome (673854747458376).

The spelling of 231514522043244 in words is "two hundred thirty-one trillion, five hundred fourteen billion, five hundred twenty-two million, forty-three thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 11 12 22 33 37 44 66 74 111 132 148 222 407 444 814 1221 1628 2442 2803 4884 5606 8409 11212 16818 30833 33636 61666 92499 103711 123332 184998 207422 311133 369996 414844 622266 1140821 1244532 2281642 3422463 4563284 6844926 13689852 16911397 33822794 50734191 67645588 101468382 186025367 202936764 372050734 558076101 625721689 744101468 1116152202 1251443378 1877165067 2232304404 2502886756 3754330134 6882938579 7508660268 13765877158 20648815737 27531754316 41297631474 47402645791 82595262948 94805291582 142207937373 189610583164 284415874746 521429103701 568831749492 1042858207402 1564287311103 1753897894267 2085716414804 3128574622206 3507795788534 5261693682801 6257149244412 7015591577068 10523387365602 19292876836937 21046774731204 38585753673874 57878630510811 77171507347748 115757261021622 231514522043244