Search a number
-
+
12144912 = 2431319463
BaseRepresentation
bin101110010101…
…000100010000
3211212000200120
4232111010100
511102114122
61112150240
7205141623
oct56250420
924760616
1012144912
11694571a
124098380
132692c50
141881dba
1510ed75c
hexb95110

12144912 has 40 divisors (see below), whose sum is σ = 33789504. Its totient is φ = 3736704.

The previous prime is 12144893. The next prime is 12144929. The reversal of 12144912 is 21944121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9108 + ... + 10355.

Almost surely, 212144912 is an apocalyptic number.

12144912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12144912 is an abundant number, since it is smaller than the sum of its proper divisors (21644592).

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

12144912 is a wasteful number, since it uses less digits than its factorization.

12144912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19487 (or 19481 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 12144912 is about 3484.9550929675. The cubic root of 12144912 is about 229.8607348475.

The spelling of 12144912 in words is "twelve million, one hundred forty-four thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 208 312 624 19463 38926 58389 77852 116778 155704 233556 253019 311408 467112 506038 759057 934224 1012076 1518114 2024152 3036228 4048304 6072456 12144912