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54145313 = 3167131199
BaseRepresentation
bin1100111010001…
…1000100100001
310202212212101222
43032203010201
5102330122223
65212304425
71225141025
oct316430441
9122785358
1054145313
11286221a2
1216172115
13b2aa161
147296385
154b480c8
hex33a3121

54145313 has 16 divisors (see below), whose sum is σ = 57446400. Its totient is φ = 50965200.

The previous prime is 54145309. The next prime is 54145321. The reversal of 54145313 is 31354145.

It is a cyclic number.

It is not a de Polignac number, because 54145313 - 22 = 54145309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54145373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271988 + ... + 272186.

It is an arithmetic number, because the mean of its divisors is an integer number (3590400).

Almost surely, 254145313 is an apocalyptic number.

It is an amenable number.

54145313 is a deficient number, since it is larger than the sum of its proper divisors (3301087).

54145313 is a wasteful number, since it uses less digits than its factorization.

54145313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its digits is 3600, while the sum is 26.

The square root of 54145313 is about 7358.3498829561. The cubic root of 54145313 is about 378.3150537247.

Adding to 54145313 its reverse (31354145), we get a palindrome (85499458).

It can be divided in two parts, 541 and 45313, that added together give a palindrome (45854).

The spelling of 54145313 in words is "fifty-four million, one hundred forty-five thousand, three hundred thirteen".

Divisors: 1 31 67 131 199 2077 4061 6169 8777 13333 26069 272087 413323 808139 1746623 54145313