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54381005 = 571553743
BaseRepresentation
bin1100111101110…
…0100111001101
310210022211201022
43033130213031
5102410143010
65221323525
71230142130
oct317344715
9123284638
1054381005
1128773288
12162665a5
13b360513
147318217
154b92d55
hex33dc9cd

54381005 has 8 divisors (see below), whose sum is σ = 74579712. Its totient is φ = 37289808.

The previous prime is 54381001. The next prime is 54381029. The reversal of 54381005 is 50018345.

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

It is a cyclic number.

It is not a de Polignac number, because 54381005 - 22 = 54381001 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 (54381001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776837 + ... + 776906.

It is an arithmetic number, because the mean of its divisors is an integer number (9322464).

Almost surely, 254381005 is an apocalyptic number.

It is an amenable number.

54381005 is a deficient number, since it is larger than the sum of its proper divisors (20198707).

54381005 is a wasteful number, since it uses less digits than its factorization.

54381005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553755.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 54381005 is about 7374.3477677690. The cubic root of 54381005 is about 378.8631883674.

The spelling of 54381005 in words is "fifty-four million, three hundred eighty-one thousand, five".

Divisors: 1 5 7 35 1553743 7768715 10876201 54381005