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54021005 = 515171551
BaseRepresentation
bin1100111000010…
…0101110001101
310202122112212222
43032010232031
5102312133010
65205505125
71224112433
oct316045615
9122575788
1054021005
1128547865
12161121a5
13b2656bc
147262d53
154b21355
hex3384b8d

54021005 has 8 divisors (see below), whose sum is σ = 65255424. Its totient is φ = 42930000.

The previous prime is 54020977. The next prime is 54021007. The reversal of 54021005 is 50012045.

54021005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 54021005 - 210 = 54019981 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 (54021007) 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, 35021 + ... + 36530.

It is an arithmetic number, because the mean of its divisors is an integer number (8156928).

Almost surely, 254021005 is an apocalyptic number.

It is an amenable number.

54021005 is a deficient number, since it is larger than the sum of its proper divisors (11234419).

54021005 is a wasteful number, since it uses less digits than its factorization.

54021005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71707.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 54021005 is about 7349.8982986161. The cubic root of 54021005 is about 378.0253172110.

The spelling of 54021005 in words is "fifty-four million, twenty-one thousand, five".

Divisors: 1 5 151 755 71551 357755 10804201 54021005