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144620448 = 25372941181
BaseRepresentation
bin10001001111010…
…11101110100000
3101002010110221220
420213223232200
5244010323243
622203415040
73404152650
oct1047535640
9332113856
10144620448
11746a8535
1240524480
1323c6743b
14152c8360
15ca6a783
hex89ebba0

144620448 has 192 divisors, whose sum is σ = 462309120. Its totient is φ = 38707200.

The previous prime is 144620431. The next prime is 144620449. The reversal of 144620448 is 844026441.

144620448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144620449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 798918 + ... + 799098.

It is an arithmetic number, because the mean of its divisors is an integer number (2407860).

Almost surely, 2144620448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144620448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231154560).

144620448 is an abundant number, since it is smaller than the sum of its proper divisors (317688672).

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

144620448 is a wasteful number, since it uses less digits than its factorization.

144620448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 144620448 is about 12025.8242129178. The cubic root of 144620448 is about 524.8999936496.

Adding to 144620448 its reverse (844026441), we get a palindrome (988646889).

The spelling of 144620448 in words is "one hundred forty-four million, six hundred twenty thousand, four hundred forty-eight".