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1361268 = 223237813
BaseRepresentation
bin101001100010101110100
32120011022100
411030111310
5322030033
645102100
714366466
oct5142564
92504270
101361268
1184a817
12557930
133887ac
14276136
151bd513
hex14c574

1361268 has 18 divisors (see below), whose sum is σ = 3441074. Its totient is φ = 453744.

The previous prime is 1361197. The next prime is 1361273. The reversal of 1361268 is 8621631.

It can be written as a sum of positive squares in only one way, i.e., 685584 + 675684 = 828^2 + 822^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18871 + ... + 18942.

21361268 is an apocalyptic number.

1361268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1361268 is an abundant number, since it is smaller than the sum of its proper divisors (2079806).

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

1361268 is a wasteful number, since it uses less digits than its factorization.

1361268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37823 (or 37818 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1361268 is about 1166.7339028245. The cubic root of 1361268 is about 110.8275872173.

Adding to 1361268 its reverse (8621631), we get a palindrome (9982899).

The spelling of 1361268 in words is "one million, three hundred sixty-one thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 37813 75626 113439 151252 226878 340317 453756 680634 1361268