Search a number
-
+
12651104360 = 23589239929
BaseRepresentation
bin10111100100001000…
…01000100001101000
31012122200021200121202
423302010020201220
5201402140314420
65451205023332
7625335420116
oct136204104150
935580250552
1012651104360
115402244a54
1225509b4b48
13126801438b
148802a8ab6
154e09d5575
hex2f2108868

12651104360 has 48 divisors (see below), whose sum is σ = 28789130700. Its totient is φ = 5003457536.

The previous prime is 12651104341. The next prime is 12651104407. The reversal of 12651104360 is 6340115621.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 781873444 + 11869230916 = 27962^2 + 108946^2 .

It is a super-2 number, since 2×126511043602 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 296876 + ... + 336804.

Almost surely, 212651104360 is an apocalyptic number.

12651104360 is a gapful number since it is divisible by the number (10) 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 12651104360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14394565350).

12651104360 is an abundant number, since it is smaller than the sum of its proper divisors (16138026340).

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

12651104360 is an equidigital number, since it uses as much as digits as its factorization.

12651104360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40118 (or 40025 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 12651104360 its reverse (6340115621), we get a palindrome (18991219981).

The spelling of 12651104360 in words is "twelve billion, six hundred fifty-one million, one hundred four thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 89 178 356 445 712 890 1780 3560 7921 15842 31684 39605 39929 63368 79210 79858 158420 159716 199645 316840 319432 399290 798580 1597160 3553681 7107362 14214724 17768405 28429448 35536810 71073620 142147240 316277609 632555218 1265110436 1581388045 2530220872 3162776090 6325552180 12651104360