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231342243000 = 233531131226141
BaseRepresentation
bin1101011101110100010…
…0100111110010111000
3211010010122020121010020
43113131010213302320
512242242103234000
6254135511050440
722466606422521
oct3273504476270
9733118217106
10231342243000
118a125735270
1238a04070a20
1318a7a7bc9ab
14b2a88c5848
15603ed34ba0
hex35dd127cb8

231342243000 has 256 divisors, whose sum is σ = 812808622080. Its totient is φ = 54273600000.

The previous prime is 231342242987. The next prime is 231342243047. The reversal of 231342243000 is 342243132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 909930 + ... + 1136070.

It is an arithmetic number, because the mean of its divisors is an integer number (3175033680).

Almost surely, 2231342243000 is an apocalyptic number.

231342243000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231342243000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406404311040).

231342243000 is an abundant number, since it is smaller than the sum of its proper divisors (581466379080).

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

231342243000 is a wasteful number, since it uses less digits than its factorization.

231342243000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226207 (or 226193 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 231342243000 its reverse (342243132), we get a palindrome (231684486132).

The spelling of 231342243000 in words is "two hundred thirty-one billion, three hundred forty-two million, two hundred forty-three thousand".