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1401244 = 221326947
BaseRepresentation
bin101010110000110011100
32122012010221
411112012130
5324314434
650011124
714624155
oct5260634
92565127
101401244
11877859
12576aa4
133a0a50
1428692c
151ca2b4
hex15619c

1401244 has 12 divisors (see below), whose sum is σ = 2640904. Its totient is φ = 646704.

The previous prime is 1401233. The next prime is 1401247. The reversal of 1401244 is 4421041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401247) 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, 13422 + ... + 13525.

21401244 is an apocalyptic number.

It is an amenable number.

1401244 is a deficient number, since it is larger than the sum of its proper divisors (1239660).

1401244 is a wasteful number, since it uses less digits than its factorization.

1401244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26964 (or 26962 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1401244 is about 1183.7415258408. The cubic root of 1401244 is about 111.9020188999.

Adding to 1401244 its reverse (4421041), we get a palindrome (5822285).

The spelling of 1401244 in words is "one million, four hundred one thousand, two hundred forty-four".

Divisors: 1 2 4 13 26 52 26947 53894 107788 350311 700622 1401244