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243130112412 = 22311331491041
BaseRepresentation
bin1110001001101110101…
…1110001100110011100
3212020120011012102000020
43202123223301212130
512440412302044122
6303405322032140
723364663566655
oct3423353614634
9766504172006
10243130112412
1194124679000
123b153948650
1319c08a10955
14baa628452c
1564ceb51c5c
hex389baf199c

243130112412 has 96 divisors (see below), whose sum is σ = 644121397248. Its totient is φ = 71299008000.

The previous prime is 243130112363. The next prime is 243130112447. The reversal of 243130112412 is 214211031342.

It is a super-2 number, since 2×2431301124122 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249612 + ... + 740652.

It is an arithmetic number, because the mean of its divisors is an integer number (6709597888).

Almost surely, 2243130112412 is an apocalyptic number.

243130112412 is a gapful number since it is divisible by the number (22) 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 243130112412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322060698624).

243130112412 is an abundant number, since it is smaller than the sum of its proper divisors (400991284836).

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

243130112412 is a wasteful number, since it uses less digits than its factorization.

243130112412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491112 (or 491088 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 243130112412 its reverse (214211031342), we get a palindrome (457341143754).

The spelling of 243130112412 in words is "two hundred forty-three billion, one hundred thirty million, one hundred twelve thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 31 33 44 62 66 93 121 124 132 186 242 341 363 372 484 682 726 1023 1331 1364 1452 2046 2662 3751 3993 4092 5324 7502 7986 11253 15004 15972 22506 41261 45012 82522 123783 165044 247566 491041 495132 982082 1473123 1964164 2946246 5401451 5892492 10802902 15222271 16204353 21605804 30444542 32408706 45666813 59415961 60889084 64817412 91333626 118831922 167444981 178247883 182667252 237663844 334889962 356495766 502334943 653575571 669779924 712991532 1004669886 1307151142 1841894791 1960726713 2009339772 2614302284 3683789582 3921453426 5525684373 7367579164 7842906852 11051368746 20260842701 22102737492 40521685402 60782528103 81043370804 121565056206 243130112412