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54056840 = 2351351421
BaseRepresentation
bin1100111000110…
…1011110001000
310202201101001012
43032031132020
5102314304330
65210343052
71224322055
oct316153610
9122641035
1054056840
1128571782
121612aa88
13b278ac6
14727202c
154b2bc95
hex338d788

54056840 has 16 divisors (see below), whose sum is σ = 121627980. Its totient is φ = 21622720.

The previous prime is 54056837. The next prime is 54056851. The reversal of 54056840 is 4865045.

54056840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52678564 + 1378276 = 7258^2 + 1174^2 .

It is a junction number, because it is equal to n+sod(n) for n = 54056797 and 54056806.

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, 675671 + ... + 675750.

Almost surely, 254056840 is an apocalyptic number.

It is an amenable number.

54056840 is an abundant number, since it is smaller than the sum of its proper divisors (67571140).

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

54056840 is a wasteful number, since it uses less digits than its factorization.

54056840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351432 (or 1351428 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 54056840 is about 7352.3356833050. The cubic root of 54056840 is about 378.1088868211.

The spelling of 54056840 in words is "fifty-four million, fifty-six thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1351421 2702842 5405684 6757105 10811368 13514210 27028420 54056840