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1354431 = 31334729
BaseRepresentation
bin101001010101010111111
32112210221010
411022222333
5321320211
645010303
714340531
oct5125277
92483833
101354431
11845671
12553993
13385650
14273851
151bb4a6
hex14aabf

1354431 has 8 divisors (see below), whose sum is σ = 1944880. Its totient is φ = 833472.

The previous prime is 1354393. The next prime is 1354471. The reversal of 1354431 is 1344531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1354431 - 27 = 1354303 is a prime.

It is a super-2 number, since 2×13544312 = 3668966667522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1354398 and 1354407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17326 + ... + 17403.

It is an arithmetic number, because the mean of its divisors is an integer number (243110).

21354431 is an apocalyptic number.

1354431 is a deficient number, since it is larger than the sum of its proper divisors (590449).

1354431 is a wasteful number, since it uses less digits than its factorization.

1354431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34745.

The product of its digits is 720, while the sum is 21.

The square root of 1354431 is about 1163.8002405911. The cubic root of 1354431 is about 110.6417310071.

Adding to 1354431 its reverse (1344531), we get a palindrome (2698962).

The spelling of 1354431 in words is "one million, three hundred fifty-four thousand, four hundred thirty-one".

Divisors: 1 3 13 39 34729 104187 451477 1354431