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441000144 = 243213235577
BaseRepresentation
bin11010010010010…
…010000011010000
31010201211010110200
4122102102003100
51400344001034
6111432055200
713633303464
oct3222220320
91121733420
10441000144
11206a29a32
12103834500
1370498440
14427d84a4
1528ab1a99
hex1a4920d0

441000144 has 60 divisors (see below), whose sum is σ = 1329131076. Its totient is φ = 135691776.

The previous prime is 441000143. The next prime is 441000149.

441000144 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 65415744 + 375584400 = 8088^2 + 19380^2 .

It is a super-2 number, since 2×4410001442 = 388962254016041472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441000143) 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, 115917 + ... + 119660.

Almost surely, 2441000144 is an apocalyptic number.

It is an amenable number.

441000144 is an abundant number, since it is smaller than the sum of its proper divisors (888130932).

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

441000144 is a wasteful number, since it uses less digits than its factorization.

441000144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235604 (or 235595 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 441000144 is about 21000.0034285711. The cubic root of 441000144 is about 761.1663439500.

It can be divided in two parts, 441000 and 144, that added together give a palindrome (441144).

The spelling of 441000144 in words is "four hundred forty-one million, one hundred forty-four", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 156 208 234 312 468 624 936 1872 235577 471154 706731 942308 1413462 1884616 2120193 2826924 3062501 3769232 4240386 5653848 6125002 8480772 9187503 11307696 12250004 16961544 18375006 24500008 27562509 33923088 36750012 49000016 55125018 73500024 110250036 147000048 220500072 441000144