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4472144 = 241947313
BaseRepresentation
bin10001000011110101010000
322102012121222
4101003311100
52121102034
6235504212
753004215
oct21036520
98365558
104472144
112584a96
1215b8068
13c07751
14845b0c
155d512e
hex443d50

4472144 has 40 divisors (see below), whose sum is σ = 9344640. Its totient is φ = 2066688.

The previous prime is 4472137. The next prime is 4472147. The reversal of 4472144 is 4412744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4472147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14132 + ... + 14444.

It is an arithmetic number, because the mean of its divisors is an integer number (233616).

Almost surely, 24472144 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 4472144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4672320).

4472144 is an abundant number, since it is smaller than the sum of its proper divisors (4872496).

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

4472144 is a wasteful number, since it uses less digits than its factorization.

4472144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 381 counting only the distinct ones).

The product of its digits is 3584, while the sum is 26.

The square root of 4472144 is about 2114.7444290032. The cubic root of 4472144 is about 164.7549960376.

Adding to 4472144 its reverse (4412744), we get a palindrome (8884888).

The spelling of 4472144 in words is "four million, four hundred seventy-two thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 19 38 47 76 94 152 188 304 313 376 626 752 893 1252 1786 2504 3572 5008 5947 7144 11894 14288 14711 23788 29422 47576 58844 95152 117688 235376 279509 559018 1118036 2236072 4472144