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11353431 = 319409487
BaseRepresentation
bin101011010011…
…110101010111
3210100210222110
4223103311113
510401302211
61043202103
7165334245
oct53236527
923323873
1011353431
116455001
123976333
13247690b
141717795
15ee3ea6
hexad3d57

11353431 has 16 divisors (see below), whose sum is σ = 16006400. Its totient is φ = 7138368.

The previous prime is 11353427. The next prime is 11353453. The reversal of 11353431 is 13435311.

11353431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11353431 - 22 = 11353427 is a prime.

It is a super-2 number, since 2×113534312 = 257800790943522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11353398 and 11353407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11353411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23070 + ... + 23556.

It is an arithmetic number, because the mean of its divisors is an integer number (1000400).

Almost surely, 211353431 is an apocalyptic number.

11353431 is a deficient number, since it is larger than the sum of its proper divisors (4652969).

11353431 is a wasteful number, since it uses less digits than its factorization.

11353431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

The product of its digits is 540, while the sum is 21.

The square root of 11353431 is about 3369.4852722634. The cubic root of 11353431 is about 224.7548341926.

Adding to 11353431 its reverse (13435311), we get a palindrome (24788742).

The spelling of 11353431 in words is "eleven million, three hundred fifty-three thousand, four hundred thirty-one".

Divisors: 1 3 19 57 409 487 1227 1461 7771 9253 23313 27759 199183 597549 3784477 11353431