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54770881 = 114979171
BaseRepresentation
bin1101000011101…
…1110011000001
310211001122112011
43100323303001
5103010132011
65233532521
71233354604
oct320736301
9124048464
1054770881
1128a0a1a0
1216414141
13b468b09
1473ba33b
154c1d621
hex343bcc1

54770881 has 4 divisors (see below), whose sum is σ = 59750064. Its totient is φ = 49791700.

The previous prime is 54770873. The next prime is 54770887. The reversal of 54770881 is 18807745.

54770881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54770881 - 23 = 54770873 is a prime.

It is a super-2 number, since 2×547708812 = 5999698811032322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (54770887) 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 3 ways as a sum of consecutive naturals, for example, 2489575 + ... + 2489596.

It is an arithmetic number, because the mean of its divisors is an integer number (14937516).

Almost surely, 254770881 is an apocalyptic number.

It is an amenable number.

54770881 is a deficient number, since it is larger than the sum of its proper divisors (4979183).

54770881 is a wasteful number, since it uses less digits than its factorization.

54770881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979182.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 54770881 is about 7400.7351661845. The cubic root of 54770881 is about 379.7664331066.

The spelling of 54770881 in words is "fifty-four million, seven hundred seventy thousand, eight hundred eighty-one".

Divisors: 1 11 4979171 54770881