Search a number
-
+
1940500 = 22533881
BaseRepresentation
bin111011001110000010100
310122120212101
413121300110
5444044000
6105331444
722331302
oct7316024
93576771
101940500
111105a21
12796b84
1352c333
14387272
15284e6a
hex1d9c14

1940500 has 24 divisors (see below), whose sum is σ = 4239144. Its totient is φ = 776000.

The previous prime is 1940483. The next prime is 1940509. The reversal of 1940500 is 50491.

It can be written as a sum of positive squares in 4 ways, for example, as 41616 + 1898884 = 204^2 + 1378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940509) 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, 1441 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (176631).

21940500 is an apocalyptic number.

1940500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1940500 is an abundant number, since it is smaller than the sum of its proper divisors (2298644).

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

1940500 is a wasteful number, since it uses less digits than its factorization.

1940500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900 (or 3888 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1940500 is about 1393.0183056945. The cubic root of 1940500 is about 124.7300842501.

Adding to 1940500 its reverse (50491), we get a palindrome (1990991).

The spelling of 1940500 in words is "one million, nine hundred forty thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 3881 7762 15524 19405 38810 77620 97025 194050 388100 485125 970250 1940500