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54012443 = 109495527
BaseRepresentation
bin1100111000001…
…0101000011011
310202122010010212
43032002220123
5102311344233
65205401335
71224045452
oct316025033
9122563125
1054012443
1128541391
121610924b
13b261834
14725db99
154b1da48
hex3382a1b

54012443 has 4 divisors (see below), whose sum is σ = 54508080. Its totient is φ = 53516808.

The previous prime is 54012437. The next prime is 54012449. The reversal of 54012443 is 34421045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34421045 = 56884209.

It is an interprime number because it is at equal distance from previous prime (54012437) and next prime (54012449).

It is a cyclic number.

It is not a de Polignac number, because 54012443 - 28 = 54012187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54012449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247655 + ... + 247872.

It is an arithmetic number, because the mean of its divisors is an integer number (13627020).

Almost surely, 254012443 is an apocalyptic number.

54012443 is a deficient number, since it is larger than the sum of its proper divisors (495637).

54012443 is a wasteful number, since it uses less digits than its factorization.

54012443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495636.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 54012443 is about 7349.3158184963. The cubic root of 54012443 is about 378.0053445863.

Adding to 54012443 its reverse (34421045), we get a palindrome (88433488).

The spelling of 54012443 in words is "fifty-four million, twelve thousand, four hundred forty-three".

Divisors: 1 109 495527 54012443