Search a number
-
+
1240484 = 22726329
BaseRepresentation
bin100101110110110100100
32100000121212
410232312210
5304143414
642330552
713354400
oct4566644
92300555
101240484
11777aa3
124b9a58
1334581b
14244100
1519783e
hex12eda4

1240484 has 18 divisors (see below), whose sum is σ = 2525670. Its totient is φ = 531552.

The previous prime is 1240483. The next prime is 1240487. The reversal of 1240484 is 4840421.

It can be written as a sum of positive squares in only one way, i.e., 1162084 + 78400 = 1078^2 + 280^2 .

It is not an unprimeable number, because it can be changed into a prime (1240483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2969 + ... + 3360.

It is an arithmetic number, because the mean of its divisors is an integer number (140315).

21240484 is an apocalyptic number.

1240484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1240484 is an abundant number, since it is smaller than the sum of its proper divisors (1285186).

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

1240484 is a wasteful number, since it uses less digits than its factorization.

1240484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6347 (or 6338 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1240484 is about 1113.7701737791. The cubic root of 1240484 is about 107.4476832146.

The spelling of 1240484 in words is "one million, two hundred forty thousand, four hundred eighty-four".

Divisors: 1 2 4 7 14 28 49 98 196 6329 12658 25316 44303 88606 177212 310121 620242 1240484