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28341155 = 57377647
BaseRepresentation
bin110110000011…
…1001110100011
31222022212202102
41230013032203
524223404110
62451241015
7462616163
oct154071643
958285672
1028341155
1114aa8147
1295a916b
135b43c1b
143a9a5a3
15274c5a5
hex1b073a3

28341155 has 8 divisors (see below), whose sum is σ = 34475712. Its totient is φ = 22362048.

The previous prime is 28341113. The next prime is 28341233. The reversal of 28341155 is 55114382.

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 28341155 - 210 = 28340131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 38459 + ... + 39188.

It is an arithmetic number, because the mean of its divisors is an integer number (4309464).

Almost surely, 228341155 is an apocalyptic number.

28341155 is a deficient number, since it is larger than the sum of its proper divisors (6134557).

28341155 is an equidigital number, since it uses as much as digits as its factorization.

28341155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77725.

The product of its digits is 4800, while the sum is 29.

The square root of 28341155 is about 5323.6411411740. The cubic root of 28341155 is about 304.8871928967.

The spelling of 28341155 in words is "twenty-eight million, three hundred forty-one thousand, one hundred fifty-five".

Divisors: 1 5 73 365 77647 388235 5668231 28341155