Search a number
-
+
144120012 = 22310721049
BaseRepresentation
bin10001001011100…
…01100011001100
3101001012001111020
420211301203030
5243343320022
622144554140
73366666651
oct1045614314
9331161436
10144120012
1174396553
1240322950
1323b2071a
14151d7c28
15c9bc35c
hex89718cc

144120012 has 36 divisors (see below), whose sum is σ = 339775800. Its totient is φ = 47545664.

The previous prime is 144120007. The next prime is 144120013. The reversal of 144120012 is 210021441.

It is a junction number, because it is equal to n+sod(n) for n = 144119973 and 144120000.

It is not an unprimeable number, because it can be changed into a prime (144120013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136864 + ... + 137912.

Almost surely, 2144120012 is an apocalyptic number.

144120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144120012 is an abundant number, since it is smaller than the sum of its proper divisors (195655788).

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

144120012 is a wasteful number, since it uses less digits than its factorization.

144120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 144120012 is about 12004.9994585589. Note that the first 3 decimals coincide. The cubic root of 144120012 is about 524.2938497127.

Adding to 144120012 its reverse (210021441), we get a palindrome (354141453).

The spelling of 144120012 in words is "one hundred forty-four million, one hundred twenty thousand, twelve".

Divisors: 1 2 3 4 6 12 107 214 321 428 642 1049 1284 2098 3147 4196 6294 11449 12588 22898 34347 45796 68694 112243 137388 224486 336729 448972 673458 1346916 12010001 24020002 36030003 48040004 72060006 144120012