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54889021 = 1110945779
BaseRepresentation
bin1101000101100…
…0101000111101
310211021122120201
43101120220331
5103022422041
65240243501
71234356205
oct321305075
9124248521
1054889021
1128a8aa30
1216470591
13b4aa815
14740b405
154c43631
hex3458a3d

54889021 has 8 divisors (see below), whose sum is σ = 60429600. Its totient is φ = 49440240.

The previous prime is 54888991. The next prime is 54889031. The reversal of 54889021 is 12098845.

54889021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 54889021 - 25 = 54888989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54889031) 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 7 ways as a sum of consecutive naturals, for example, 21691 + ... + 24088.

It is an arithmetic number, because the mean of its divisors is an integer number (7553700).

Almost surely, 254889021 is an apocalyptic number.

It is an amenable number.

54889021 is a deficient number, since it is larger than the sum of its proper divisors (5540579).

54889021 is a wasteful number, since it uses less digits than its factorization.

54889021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45899.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 54889021 is about 7408.7125062321. The cubic root of 54889021 is about 380.0392872585.

The spelling of 54889021 in words is "fifty-four million, eight hundred eighty-nine thousand, twenty-one".

Divisors: 1 11 109 1199 45779 503569 4989911 54889021