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1071369 = 32139157
BaseRepresentation
bin100000101100100001001
32000102122100
410011210021
5233240434
634544013
712051345
oct4054411
92012570
101071369
11671a32
12438009
132b6860
141dc625
15162699
hex105909

1071369 has 12 divisors (see below), whose sum is σ = 1666756. Its totient is φ = 659232.

The previous prime is 1071359. The next prime is 1071373. The reversal of 1071369 is 9631701.

It can be written as a sum of positive squares in 2 ways, for example, as 149769 + 921600 = 387^2 + 960^2 .

It is not a de Polignac number, because 1071369 - 25 = 1071337 is a prime.

It is a super-2 number, since 2×10713692 = 2295663068322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4462 + ... + 4695.

21071369 is an apocalyptic number.

It is an amenable number.

1071369 is a deficient number, since it is larger than the sum of its proper divisors (595387).

1071369 is a wasteful number, since it uses less digits than its factorization.

1071369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9176 (or 9173 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1071369 is about 1035.0695628797. The cubic root of 1071369 is about 102.3245143248.

The spelling of 1071369 in words is "one million, seventy-one thousand, three hundred sixty-nine".

Divisors: 1 3 9 13 39 117 9157 27471 82413 119041 357123 1071369