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54220807 = 294343481
BaseRepresentation
bin1100111011010…
…1100000000111
310210000200222001
43032311200013
5102340031212
65214050131
71225604104
oct316654007
9123020861
1054220807
1128673993
12161a9947
13b305624
1472b5aab
154b60657
hex33b5807

54220807 has 8 divisors (see below), whose sum is σ = 57396240. Its totient is φ = 51132480.

The previous prime is 54220801. The next prime is 54220843. The reversal of 54220807 is 70802245.

54220807 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 54220807 - 27 = 54220679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54220801) 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, 20494 + ... + 22987.

It is an arithmetic number, because the mean of its divisors is an integer number (7174530).

Almost surely, 254220807 is an apocalyptic number.

54220807 is a deficient number, since it is larger than the sum of its proper divisors (3175433).

54220807 is a wasteful number, since it uses less digits than its factorization.

54220807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43553.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 54220807 is about 7363.4779146813. The cubic root of 54220807 is about 378.4907984107.

The spelling of 54220807 in words is "fifty-four million, two hundred twenty thousand, eight hundred seven".

Divisors: 1 29 43 1247 43481 1260949 1869683 54220807