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54144279 = 327859433
BaseRepresentation
bin1100111010001…
…0110100010111
310202212210222200
43032202310113
5102330104104
65212255543
71225135020
oct316426427
9122783880
1054144279
1128621442
12161715b3
13b2a9847
147295c47
154b47b39
hex33a2d17

54144279 has 12 divisors (see below), whose sum is σ = 89381136. Its totient is φ = 30939552.

The previous prime is 54144263. The next prime is 54144287. The reversal of 54144279 is 97244145.

It is a happy number.

54144279 is a `hidden beast` number, since 541 + 4 + 42 + 79 = 666.

It is not a de Polignac number, because 54144279 - 24 = 54144263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54144229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429654 + ... + 429779.

It is an arithmetic number, because the mean of its divisors is an integer number (7448428).

Almost surely, 254144279 is an apocalyptic number.

54144279 is a deficient number, since it is larger than the sum of its proper divisors (35236857).

54144279 is a wasteful number, since it uses less digits than its factorization.

54144279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859446 (or 859443 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 54144279 is about 7358.2796223030. The cubic root of 54144279 is about 378.3126455122.

The spelling of 54144279 in words is "fifty-four million, one hundred forty-four thousand, two hundred seventy-nine".

Divisors: 1 3 7 9 21 63 859433 2578299 6016031 7734897 18048093 54144279