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54820115 = 571566289
BaseRepresentation
bin1101000100011…
…1110100010011
310211011011001122
43101013310103
5103013220430
65234552455
71233651260
oct321076423
9124134048
1054820115
1128a43189
121643872b
13b48534c
1473d0267
154c2cee5
hex3447d13

54820115 has 8 divisors (see below), whose sum is σ = 75181920. Its totient is φ = 37590912.

The previous prime is 54820093. The next prime is 54820159. The reversal of 54820115 is 51102845.

54820115 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 54820115 - 212 = 54816019 is a prime.

It is a super-2 number, since 2×548201152 = 6010490017226450, which contains 22 as substring.

It is an unprimeable number.

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, 783110 + ... + 783179.

It is an arithmetic number, because the mean of its divisors is an integer number (9397740).

Almost surely, 254820115 is an apocalyptic number.

54820115 is a deficient number, since it is larger than the sum of its proper divisors (20361805).

54820115 is a wasteful number, since it uses less digits than its factorization.

54820115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566301.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 54820115 is about 7404.0607101779. The cubic root of 54820115 is about 379.8801907615.

The spelling of 54820115 in words is "fifty-four million, eight hundred twenty thousand, one hundred fifteen".

Divisors: 1 5 7 35 1566289 7831445 10964023 54820115