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54023140 = 2253178521
BaseRepresentation
bin1100111000010…
…1001111100100
310202122122211001
43032011033210
5102312220030
65205523044
71224121603
oct316051744
9122578731
1054023140
1128549426
1216113484
13b266672
147263a3a
154b21cca
hex33853e4

54023140 has 24 divisors (see below), whose sum is σ = 113819832. Its totient is φ = 21538560.

The previous prime is 54023131. The next prime is 54023149. The reversal of 54023140 is 4132045.

54023140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54023131) and next prime (54023149).

It can be written as a sum of positive squares in 4 ways, for example, as 88804 + 53934336 = 298^2 + 7344^2 .

It is not an unprimeable number, because it can be changed into a prime (54023149) 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, 2080 + ... + 10600.

It is an arithmetic number, because the mean of its divisors is an integer number (4742493).

Almost surely, 254023140 is an apocalyptic number.

It is an amenable number.

54023140 is an abundant number, since it is smaller than the sum of its proper divisors (59796692).

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

54023140 is a wasteful number, since it uses less digits than its factorization.

54023140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8847 (or 8845 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 54023140 is about 7350.0435372860. The cubic root of 54023140 is about 378.0302972086.

Adding to 54023140 its reverse (4132045), we get a palindrome (58155185).

The spelling of 54023140 in words is "fifty-four million, twenty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 317 634 1268 1585 3170 6340 8521 17042 34084 42605 85210 170420 2701157 5402314 10804628 13505785 27011570 54023140