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28341047 = 74786143
BaseRepresentation
bin110110000011…
…1001100110111
31222022212121102
41230013030313
524223403142
62451240315
7462615650
oct154071467
958285542
1028341047
1114aa8059
1295a909b
135b43b67
143a9a527
15274c532
hex1b07337

28341047 has 8 divisors (see below), whose sum is σ = 33079296. Its totient is φ = 23775192.

The previous prime is 28341031. The next prime is 28341077. The reversal of 28341047 is 74014382.

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

It is not a de Polignac number, because 28341047 - 24 = 28341031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28341017) 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, 42743 + ... + 43400.

It is an arithmetic number, because the mean of its divisors is an integer number (4134912).

Almost surely, 228341047 is an apocalyptic number.

28341047 is a deficient number, since it is larger than the sum of its proper divisors (4738249).

28341047 is an equidigital number, since it uses as much as digits as its factorization.

28341047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86197.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 28341047 is about 5323.6309977308. The cubic root of 28341047 is about 304.8868056171.

The spelling of 28341047 in words is "twenty-eight million, three hundred forty-one thousand, forty-seven".

Divisors: 1 7 47 329 86143 603001 4048721 28341047