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54676681 = 239072621
BaseRepresentation
bin1101000010010…
…0110011001001
310210212212022021
43100210303021
5102444123211
65231524441
71232513143
oct320446311
9123785267
1054676681
1128955444
1216389721
13b434c87
147393c93
154c00771
hex3424cc9

54676681 has 8 divisors (see below), whose sum is σ = 57138624. Its totient is φ = 52221840.

The previous prime is 54676631. The next prime is 54676691. The reversal of 54676681 is 18667645.

It is a happy number.

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 54676681 - 27 = 54676553 is a prime.

It is a super-2 number, since 2×546766812 = 5979078890351522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54676621) 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 7 ways as a sum of consecutive naturals, for example, 19551 + ... + 22171.

It is an arithmetic number, because the mean of its divisors is an integer number (7142328).

Almost surely, 254676681 is an apocalyptic number.

It is an amenable number.

54676681 is a deficient number, since it is larger than the sum of its proper divisors (2461943).

54676681 is a wasteful number, since it uses less digits than its factorization.

54676681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551.

The product of its digits is 241920, while the sum is 43.

The square root of 54676681 is about 7394.3681947818. The cubic root of 54676681 is about 379.5485890861.

The spelling of 54676681 in words is "fifty-four million, six hundred seventy-six thousand, six hundred eighty-one".

Divisors: 1 23 907 2621 20861 60283 2377247 54676681