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54278494 = 227139247
BaseRepresentation
bin1100111100001…
…1100101011110
310210010122002121
43033003211132
5102343402434
65215213154
71226234224
oct317034536
9123118077
1054278494
1128703266
12162171ba
13b32596a
1472ccb14
154b727b4
hex33c395e

54278494 has 4 divisors (see below), whose sum is σ = 81417744. Its totient is φ = 27139246.

The previous prime is 54278473. The next prime is 54278503. The reversal of 54278494 is 49487245.

54278494 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×542784943 (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54278494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13569622 + ... + 13569625.

It is an arithmetic number, because the mean of its divisors is an integer number (20354436).

Almost surely, 254278494 is an apocalyptic number.

54278494 is a deficient number, since it is larger than the sum of its proper divisors (27139250).

54278494 is a wasteful number, since it uses less digits than its factorization.

54278494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27139249.

The product of its digits is 322560, while the sum is 43.

The square root of 54278494 is about 7367.3939761628. The cubic root of 54278494 is about 378.6249797408.

The spelling of 54278494 in words is "fifty-four million, two hundred seventy-eight thousand, four hundred ninety-four".

Divisors: 1 2 27139247 54278494