Search a number
-
+
12110042240 = 27518921941
BaseRepresentation
bin10110100011101000…
…01001010010000000
31011020222011212220222
423101310021102000
5144300132322430
65321400122212
7606045442412
oct132164112200
934228155828
1012110042240
115154891a7a
12241b766368
1311acbb318a
1482c4a49b2
154ad25a9e5
hex2d1d09480

12110042240 has 32 divisors (see below), whose sum is σ = 28950571260. Its totient is φ = 4844016640.

The previous prime is 12110042221. The next prime is 12110042261. The reversal of 12110042240 is 4224001121.

It can be written as a sum of positive squares in 2 ways, for example, as 11190254656 + 919787584 = 105784^2 + 30328^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9460331 + ... + 9461610.

Almost surely, 212110042240 is an apocalyptic number.

12110042240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110042240 is an abundant number, since it is smaller than the sum of its proper divisors (16840529020).

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

12110042240 is an equidigital number, since it uses as much as digits as its factorization.

12110042240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18921960 (or 18921948 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12110042240 its reverse (4224001121), we get a palindrome (16334043361).

The spelling of 12110042240 in words is "twelve billion, one hundred ten million, forty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 18921941 37843882 75687764 94609705 151375528 189219410 302751056 378438820 605502112 756877640 1211004224 1513755280 2422008448 3027510560 6055021120 12110042240