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28050238 = 217825007
BaseRepresentation
bin110101100000…
…0001100111110
31221210002200201
41223000030332
524140101423
62441114114
7460265056
oct153001476
957702621
1028050238
1114919617
12948893a
135a71698
143a22566
1526e12ad
hex1ac033e

28050238 has 8 divisors (see below), whose sum is σ = 44550432. Its totient is φ = 13200096.

The previous prime is 28050227. The next prime is 28050241. The reversal of 28050238 is 83205082.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412470 + ... + 412537.

It is an arithmetic number, because the mean of its divisors is an integer number (5568804).

Almost surely, 228050238 is an apocalyptic number.

28050238 is a deficient number, since it is larger than the sum of its proper divisors (16500194).

28050238 is a wasteful number, since it uses less digits than its factorization.

28050238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825026.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 28050238 is about 5296.2475395321. The cubic root of 28050238 is about 303.8403983906.

The spelling of 28050238 in words is "twenty-eight million, fifty thousand, two hundred thirty-eight".

Divisors: 1 2 17 34 825007 1650014 14025119 28050238