Search a number
-
+
12115353012 = 2237181796853
BaseRepresentation
bin10110100100010000…
…11001110110110100
31011021100011200221020
423102020121312310
5144303012244022
65322110021140
7606141541620
oct132210316664
934240150836
1012115353012
11515788a044
1224214a77b0
1311b1022549
1482d088180
154ad95935c
hex2d2219db4

12115353012 has 48 divisors (see below), whose sum is σ = 32486143872. Its totient is φ = 3442400640.

The previous prime is 12115353011. The next prime is 12115353023. The reversal of 12115353012 is 21035351121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115353011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383223 + ... + 413630.

It is an arithmetic number, because the mean of its divisors is an integer number (676794664).

Almost surely, 212115353012 is an apocalyptic number.

12115353012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12115353012 is an abundant number, since it is smaller than the sum of its proper divisors (20370790860).

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

12115353012 is a wasteful number, since it uses less digits than its factorization.

12115353012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797048 (or 797046 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 12115353012 in words is "twelve billion, one hundred fifteen million, three hundred fifty-three thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 181 362 543 724 1086 1267 2172 2534 3801 5068 7602 15204 796853 1593706 2390559 3187412 4781118 5577971 9562236 11155942 16733913 22311884 33467826 66935652 144230393 288460786 432691179 576921572 865382358 1009612751 1730764716 2019225502 3028838253 4038451004 6057676506 12115353012