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54022869 = 346611009
BaseRepresentation
bin1100111000010…
…1001011010101
310202122122110000
43032011023111
5102312212434
65205521513
71224121035
oct316051325
9122578400
1054022869
11285491aa
1216113299
13b2664c4
1472638c5
154b21b99
hex33852d5

54022869 has 20 divisors (see below), whose sum is σ = 80903020. Its totient is φ = 35925120.

The previous prime is 54022867. The next prime is 54022897. The reversal of 54022869 is 96822045.

It is a happy number.

54022869 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 30140100 + 23882769 = 5490^2 + 4887^2 .

It is not a de Polignac number, because 54022869 - 21 = 54022867 is a prime.

It is a super-2 number, since 2×540228692 = 5836940749982322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54022867) 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 19 ways as a sum of consecutive naturals, for example, 53037 + ... + 54045.

It is an arithmetic number, because the mean of its divisors is an integer number (4045151).

Almost surely, 254022869 is an apocalyptic number.

It is an amenable number.

54022869 is a deficient number, since it is larger than the sum of its proper divisors (26880151).

54022869 is a wasteful number, since it uses less digits than its factorization.

54022869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682 (or 1673 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 54022869 is about 7350.0251019980. The cubic root of 54022869 is about 378.0296650944.

It can be divided in two parts, 540 and 22869, that added together give a square (23409 = 1532).

The spelling of 54022869 in words is "fifty-four million, twenty-two thousand, eight hundred sixty-nine".

Divisors: 1 3 9 27 81 661 1009 1983 3027 5949 9081 17847 27243 53541 81729 666949 2000847 6002541 18007623 54022869