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1328193 = 32178681
BaseRepresentation
bin101000100010001000001
32111110221100
411010101001
5320000233
644245013
714201166
oct5042101
92443840
101328193
11827989
12540769
13376719
1426806d
151b3813
hex144441

1328193 has 12 divisors (see below), whose sum is σ = 2031588. Its totient is φ = 833280.

The previous prime is 1328183. The next prime is 1328203. The reversal of 1328193 is 3918231.

1328193 is nontrivially palindromic in base 16.

It is an interprime number because it is at equal distance from previous prime (1328183) and next prime (1328203).

It can be written as a sum of positive squares in 2 ways, for example, as 1065024 + 263169 = 1032^2 + 513^2 .

It is not a de Polignac number, because 1328193 - 25 = 1328161 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1328143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4188 + ... + 4493.

It is an arithmetic number, because the mean of its divisors is an integer number (169299).

21328193 is an apocalyptic number.

It is an amenable number.

1328193 is a deficient number, since it is larger than the sum of its proper divisors (703395).

1328193 is a wasteful number, since it uses less digits than its factorization.

1328193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8704 (or 8701 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1328193 is about 1152.4725593263. The cubic root of 1328193 is about 109.9226177526.

It can be divided in two parts, 1328 and 193, that added together give a square (1521 = 392).

The spelling of 1328193 in words is "one million, three hundred twenty-eight thousand, one hundred ninety-three".

Divisors: 1 3 9 17 51 153 8681 26043 78129 147577 442731 1328193