Search a number
-
+
1441940 = 225174241
BaseRepresentation
bin101100000000010010100
32201020222012
411200002110
5332120230
650523352
715153623
oct5400224
92636865
101441940
118a5395
12596558
133b6426
142976ba
151d7395
hex160094

1441940 has 24 divisors (see below), whose sum is σ = 3206952. Its totient is φ = 542720.

The previous prime is 1441933. The next prime is 1441949. The reversal of 1441940 is 491441.

1441940 = T171 + T172 + ... + T238.

It can be written as a sum of positive squares in 4 ways, for example, as 743044 + 698896 = 862^2 + 836^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441949) 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, 1781 + ... + 2460.

It is an arithmetic number, because the mean of its divisors is an integer number (133623).

21441940 is an apocalyptic number.

1441940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1441940 is an abundant number, since it is smaller than the sum of its proper divisors (1765012).

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

1441940 is a wasteful number, since it uses less digits than its factorization.

1441940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267 (or 4265 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1441940 is about 1200.8080612654. The cubic root of 1441940 is about 112.9750120956.

The spelling of 1441940 in words is "one million, four hundred forty-one thousand, nine hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 4241 8482 16964 21205 42410 72097 84820 144194 288388 360485 720970 1441940