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54800849 = 277197837
BaseRepresentation
bin1101000100001…
…1000111010001
310211010011122002
43101003013101
5103012111344
65234323345
71233541145
oct321030721
9124104562
1054800849
1128a2a764
1216429555
13b47964c
1473c7225
154c2744e
hex34431d1

54800849 has 4 divisors (see below), whose sum is σ = 54998964. Its totient is φ = 54602736.

The previous prime is 54800803. The next prime is 54800861. The reversal of 54800849 is 94800845.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11662225 + 43138624 = 3415^2 + 6568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54800849 is a prime.

It is a super-2 number, since 2×548008492 = 6006266102241602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54803849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98642 + ... + 99195.

It is an arithmetic number, because the mean of its divisors is an integer number (13749741).

Almost surely, 254800849 is an apocalyptic number.

It is an amenable number.

54800849 is a deficient number, since it is larger than the sum of its proper divisors (198115).

54800849 is a wasteful number, since it uses less digits than its factorization.

54800849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198114.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 54800849 is about 7402.7595530316. The cubic root of 54800849 is about 379.8356838058.

The spelling of 54800849 in words is "fifty-four million, eight hundred thousand, eight hundred forty-nine".

Divisors: 1 277 197837 54800849