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28303414 = 273193859
BaseRepresentation
bin110101111111…
…0000000110110
31222020221222121
41223332000312
524221202124
62450350154
7462401146
oct153760066
958227877
1028303414
1114a81857
12958b35a
135b2c9a9
143a8a926
1527412e4
hex1afe036

28303414 has 8 divisors (see below), whose sum is σ = 43036920. Its totient is φ = 13957776.

The previous prime is 28303397. The next prime is 28303423. The reversal of 28303414 is 41430382.

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, 96784 + ... + 97075.

It is an arithmetic number, because the mean of its divisors is an integer number (5379615).

Almost surely, 228303414 is an apocalyptic number.

28303414 is a deficient number, since it is larger than the sum of its proper divisors (14733506).

28303414 is a wasteful number, since it uses less digits than its factorization.

28303414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193934.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 28303414 is about 5320.0952998983. The cubic root of 28303414 is about 304.7517966382.

Adding to 28303414 its reverse (41430382), we get a palindrome (69733796).

The spelling of 28303414 in words is "twenty-eight million, three hundred three thousand, four hundred fourteen".

Divisors: 1 2 73 146 193859 387718 14151707 28303414