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54152243 = 401135043
BaseRepresentation
bin1100111010010…
…0110000110011
310202220012220122
43032210300303
5102330332433
65212400455
71225200155
oct316446063
9122805818
1054152243
1128627422
121617612b
13b2b0362
147298ad5
154b4a198
hex33a4c33

54152243 has 4 divisors (see below), whose sum is σ = 54287688. Its totient is φ = 54016800.

The previous prime is 54152233. The next prime is 54152249. The reversal of 54152243 is 34225145.

It is a happy number.

54152243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34225145 = 56845029.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54152243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54152249) 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 3 ways as a sum of consecutive naturals, for example, 67121 + ... + 67922.

It is an arithmetic number, because the mean of its divisors is an integer number (13571922).

Almost surely, 254152243 is an apocalyptic number.

54152243 is a deficient number, since it is larger than the sum of its proper divisors (135445).

54152243 is a wasteful number, since it uses less digits than its factorization.

54152243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135444.

The product of its digits is 4800, while the sum is 26.

The square root of 54152243 is about 7358.8207615079. The cubic root of 54152243 is about 378.3311930809.

Adding to 54152243 its reverse (34225145), we get a palindrome (88377388).

The spelling of 54152243 in words is "fifty-four million, one hundred fifty-two thousand, two hundred forty-three".

Divisors: 1 401 135043 54152243