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28554119 = 117973257
BaseRepresentation
bin110110011101…
…1001110000111
31222201200212222
41230323032013
524302212434
62500002555
7464464106
oct154731607
958650788
1028554119
1115133150
12969045b
135bb9b39
143b1403d
15279072e
hex1b3b387

28554119 has 8 divisors (see below), whose sum is σ = 31198608. Its totient is φ = 25917760.

The previous prime is 28554079. The next prime is 28554139. The reversal of 28554119 is 91145582.

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

It is a de Polignac number, because none of the positive numbers 2k-28554119 is a prime.

It is a super-2 number, since 2×285541192 = 1630675423732322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28554139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7139 + ... + 10395.

It is an arithmetic number, because the mean of its divisors is an integer number (3899826).

Almost surely, 228554119 is an apocalyptic number.

28554119 is a deficient number, since it is larger than the sum of its proper divisors (2644489).

28554119 is a wasteful number, since it uses less digits than its factorization.

28554119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4065.

The product of its digits is 14400, while the sum is 35.

The square root of 28554119 is about 5343.6054307930. The cubic root of 28554119 is about 305.6489595122.

The spelling of 28554119 in words is "twenty-eight million, five hundred fifty-four thousand, one hundred nineteen".

Divisors: 1 11 797 3257 8767 35827 2595829 28554119