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54420893 = 173201229
BaseRepresentation
bin1100111110011…
…0010110011101
310210101212102122
43033212112131
5102412432033
65222232325
71230366332
oct317462635
9123355378
1054420893
11287a024a
12162856a5
13b375717
147328989
154b9ea98
hex33e659d

54420893 has 4 divisors (see below), whose sum is σ = 57622140. Its totient is φ = 51219648.

The previous prime is 54420889. The next prime is 54420901. The reversal of 54420893 is 39802445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24423364 + 29997529 = 4942^2 + 5477^2 .

It is a cyclic number.

It is not a de Polignac number, because 54420893 - 22 = 54420889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54420803) 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, 1600598 + ... + 1600631.

It is an arithmetic number, because the mean of its divisors is an integer number (14405535).

Almost surely, 254420893 is an apocalyptic number.

It is an amenable number.

54420893 is a deficient number, since it is larger than the sum of its proper divisors (3201247).

54420893 is a wasteful number, since it uses less digits than its factorization.

54420893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201246.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 54420893 is about 7377.0517823857. The cubic root of 54420893 is about 378.9557966933.

The spelling of 54420893 in words is "fifty-four million, four hundred twenty thousand, eight hundred ninety-three".

Divisors: 1 17 3201229 54420893