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54987673 = 1317248813
BaseRepresentation
bin1101000111000…
…0101110011001
310211110122220111
43101300232121
5103034101143
65242324321
71235246626
oct321605631
9124418814
1054987673
1129048064
12164b96a1
13b5136b0
14743534d
154c6299d
hex3470b99

54987673 has 8 divisors (see below), whose sum is σ = 62701128. Its totient is φ = 47771904.

The previous prime is 54987649. The next prime is 54987689. The reversal of 54987673 is 37678945.

It is a happy number.

54987673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 419904 + 54567769 = 648^2 + 7387^2 .

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

It is not a de Polignac number, because 54987673 - 213 = 54979481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54987073) 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, 124186 + ... + 124627.

It is an arithmetic number, because the mean of its divisors is an integer number (7837641).

Almost surely, 254987673 is an apocalyptic number.

It is an amenable number.

54987673 is a deficient number, since it is larger than the sum of its proper divisors (7713455).

54987673 is a wasteful number, since it uses less digits than its factorization.

54987673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248843.

The product of its digits is 1270080, while the sum is 49.

The square root of 54987673 is about 7415.3673543527. The cubic root of 54987673 is about 380.2668324412.

The spelling of 54987673 in words is "fifty-four million, nine hundred eighty-seven thousand, six hundred seventy-three".

Divisors: 1 13 17 221 248813 3234569 4229821 54987673