Search a number
-
+
144404212 = 22231569611
BaseRepresentation
bin10001001101101…
…10111011110100
3101001201111100011
420212312323310
5243431413322
622155030004
73402262351
oct1046667364
9331644304
10144404212
1174570027
124043b304
1323bbcba4
141526d628
15ca26677
hex89b6ef4

144404212 has 12 divisors (see below), whose sum is σ = 263694816. Its totient is φ = 69062840.

The previous prime is 144404177. The next prime is 144404219. The reversal of 144404212 is 212404441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144404219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784714 + ... + 784897.

It is an arithmetic number, because the mean of its divisors is an integer number (21974568).

Almost surely, 2144404212 is an apocalyptic number.

It is an amenable number.

144404212 is a deficient number, since it is larger than the sum of its proper divisors (119290604).

144404212 is a wasteful number, since it uses less digits than its factorization.

144404212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569638 (or 1569636 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 144404212 is about 12016.8303641185. The cubic root of 144404212 is about 524.6382535959.

Adding to 144404212 its reverse (212404441), we get a palindrome (356808653).

The spelling of 144404212 in words is "one hundred forty-four million, four hundred four thousand, two hundred twelve".

Divisors: 1 2 4 23 46 92 1569611 3139222 6278444 36101053 72202106 144404212