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54212881 = 1737791091
BaseRepresentation
bin1100111011001…
…1100100010001
310210000022002111
43032303210101
5102334303011
65213545321
71225542022
oct316634421
9123008074
1054212881
1128668a38
12161a5241
13b301b38
1472b2c49
154b5d121
hex33b3911

54212881 has 16 divisors (see below), whose sum is σ = 59754240. Its totient is φ = 48971520.

The previous prime is 54212843. The next prime is 54212887. The reversal of 54212881 is 18821245.

54212881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 54212881 - 29 = 54212369 is a prime.

It is a super-2 number, since 2×542128812 = 5878072932640322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54212887) 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 15 ways as a sum of consecutive naturals, for example, 49146 + ... + 50236.

It is an arithmetic number, because the mean of its divisors is an integer number (3734640).

Almost surely, 254212881 is an apocalyptic number.

It is an amenable number.

54212881 is a deficient number, since it is larger than the sum of its proper divisors (5541359).

54212881 is a wasteful number, since it uses less digits than its factorization.

54212881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224.

The product of its digits is 5120, while the sum is 31.

The square root of 54212881 is about 7362.9396982455. The cubic root of 54212881 is about 378.4723549114.

The spelling of 54212881 in words is "fifty-four million, two hundred twelve thousand, eight hundred eighty-one".

Divisors: 1 17 37 79 629 1091 1343 2923 18547 40367 49691 86189 686239 1465213 3188993 54212881