Search a number
-
+
1401236 = 221372557
BaseRepresentation
bin101010110000110010100
32122012010122
411112012110
5324314421
650011112
714624144
oct5260624
92565118
101401236
11877851
12576a98
133a0a45
14286924
151ca2ab
hex156194

1401236 has 12 divisors (see below), whose sum is σ = 2471028. Its totient is φ = 695232.

The previous prime is 1401233. The next prime is 1401247. The reversal of 1401236 is 6321041.

It can be written as a sum of positive squares in 2 ways, for example, as 712336 + 688900 = 844^2 + 830^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731 + ... + 1826.

It is an arithmetic number, because the mean of its divisors is an integer number (205919).

21401236 is an apocalyptic number.

It is an amenable number.

1401236 is a deficient number, since it is larger than the sum of its proper divisors (1069792).

1401236 is a wasteful number, since it uses less digits than its factorization.

1401236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698 (or 2696 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1401236 is about 1183.7381467200. The cubic root of 1401236 is about 111.9018059420.

Adding to 1401236 its reverse (6321041), we get a palindrome (7722277).

The spelling of 1401236 in words is "one million, four hundred one thousand, two hundred thirty-six".

Divisors: 1 2 4 137 274 548 2557 5114 10228 350309 700618 1401236