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28054677 = 375922643
BaseRepresentation
bin110101100000…
…1010010010101
31221210022210010
41223001102111
524140222202
62441150433
7460314030
oct153012225
957708703
1028054677
1114921992
12948b419
135a73701
143a24017
1526e276c
hex1ac1495

28054677 has 16 divisors (see below), whose sum is σ = 43476480. Its totient is φ = 15758832.

The previous prime is 28054633. The next prime is 28054679. The reversal of 28054677 is 77645082.

It is not a de Polignac number, because 28054677 - 222 = 23860373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28054679) 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 15 ways as a sum of consecutive naturals, for example, 10083 + ... + 12560.

It is an arithmetic number, because the mean of its divisors is an integer number (2717280).

Almost surely, 228054677 is an apocalyptic number.

It is an amenable number.

28054677 is a deficient number, since it is larger than the sum of its proper divisors (15421803).

28054677 is a wasteful number, since it uses less digits than its factorization.

28054677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22712.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 28054677 is about 5296.6665932452. Note that the first 3 decimals coincide. The cubic root of 28054677 is about 303.8564253061.

The spelling of 28054677 in words is "twenty-eight million, fifty-four thousand, six hundred seventy-seven".

Divisors: 1 3 7 21 59 177 413 1239 22643 67929 158501 475503 1335937 4007811 9351559 28054677