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54097881 = 383921493
BaseRepresentation
bin1100111001011…
…1011111011001
310202210110100020
43032113133121
5102322113011
65211301053
71224552525
oct316273731
9122713306
1054097881
112859a5a2
121614a789
13b2916a6
147282d85
154b39006
hex33977d9

54097881 has 8 divisors (see below), whose sum is σ = 72219840. Its totient is φ = 36020592.

The previous prime is 54097873. The next prime is 54097903. The reversal of 54097881 is 18879045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54097881 - 23 = 54097873 is a prime.

It is a super-2 number, since 2×540978812 = 5853161457380322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (54097801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8230 + ... + 13263.

It is an arithmetic number, because the mean of its divisors is an integer number (9027480).

Almost surely, 254097881 is an apocalyptic number.

It is an amenable number.

54097881 is a deficient number, since it is larger than the sum of its proper divisors (18121959).

54097881 is a wasteful number, since it uses less digits than its factorization.

54097881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22335.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 54097881 is about 7355.1261715894. The cubic root of 54097881 is about 378.2045518118.

The spelling of 54097881 in words is "fifty-four million, ninety-seven thousand, eight hundred eighty-one".

Divisors: 1 3 839 2517 21493 64479 18032627 54097881