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54171020 = 2252708551
BaseRepresentation
bin1100111010100…
…1010110001100
310202221011200002
43032221112030
5102331433040
65213023432
71225306001
oct316512614
9122834602
1054171020
112863a542
1216184b78
13b2b8a77
1472a18a8
154b50a15
hex33a958c

54171020 has 12 divisors (see below), whose sum is σ = 113759184. Its totient is φ = 21668400.

The previous prime is 54171017. The next prime is 54171077. The reversal of 54171020 is 2017145.

54171020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2708551 = 54171020 / (5 + 4 + 1 + 7 + 1 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 54170983 and 54171001.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1354256 + ... + 1354295.

It is an arithmetic number, because the mean of its divisors is an integer number (9479932).

Almost surely, 254171020 is an apocalyptic number.

It is an amenable number.

54171020 is an abundant number, since it is smaller than the sum of its proper divisors (59588164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54171020 is a wasteful number, since it uses less digits than its factorization.

54171020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708560 (or 2708558 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 54171020 is about 7360.0964667591. The cubic root of 54171020 is about 378.3749161321.

Adding to 54171020 its reverse (2017145), we get a palindrome (56188165).

The spelling of 54171020 in words is "fifty-four million, one hundred seventy-one thousand, twenty".

Divisors: 1 2 4 5 10 20 2708551 5417102 10834204 13542755 27085510 54171020