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12144012650 = 25271123137143
BaseRepresentation
bin10110100111101011…
…01110110101101010
31011100100002202120022
423103311232311222
5144332331401100
65325012200442
7606640255460
oct132365566552
934310082508
1012144012650
115171a844a0
12242b009122
1311b6c48403
14832bc8830
154b121ae85
hex2d3d6ed6a

12144012650 has 96 divisors (see below), whose sum is σ = 29386119168. Its totient is φ = 3620548800.

The previous prime is 12144012593. The next prime is 12144012689. The reversal of 12144012650 is 5621044121.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19979 + ... + 157121.

It is an arithmetic number, because the mean of its divisors is an integer number (306105408).

Almost surely, 212144012650 is an apocalyptic number.

12144012650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12144012650 is an abundant number, since it is smaller than the sum of its proper divisors (17242106518).

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

12144012650 is a wasteful number, since it uses less digits than its factorization.

12144012650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137196 (or 137191 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 12144012650 its reverse (5621044121), we get a palindrome (17765056771).

The spelling of 12144012650 in words is "twelve billion, one hundred forty-four million, twelve thousand, six hundred fifty".

Divisors: 1 2 5 7 10 11 14 22 23 25 35 46 50 55 70 77 110 115 154 161 175 230 253 275 322 350 385 506 550 575 770 805 1150 1265 1610 1771 1925 2530 3542 3850 4025 6325 8050 8855 12650 17710 44275 88550 137143 274286 685715 960001 1371430 1508573 1920002 3017146 3154289 3428575 4800005 6308578 6857150 7542865 9600010 10560011 15085730 15771445 21120022 22080023 24000025 31542890 34697179 37714325 44160046 48000050 52800055 69394358 75428650 78857225 105600110 110400115 157714450 173485895 220800230 242880253 264000275 346971790 485760506 528000550 552000575 867429475 1104001150 1214401265 1734858950 2428802530 6072006325 12144012650