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28414115 = 519129753
BaseRepresentation
bin110110001100…
…1000010100011
31222110120211122
41230121002203
524233222430
62453002455
7463341662
oct154310243
958416748
1028414115
1115047a44
12962342b
135b6b1b2
143ab8dd9
152763ee5
hex1b190a3

28414115 has 8 divisors (see below), whose sum is σ = 34276608. Its totient is φ = 22611520.

The previous prime is 28414109. The next prime is 28414121. The reversal of 28414115 is 51141482.

It is an interprime number because it is at equal distance from previous prime (28414109) and next prime (28414121).

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

It is not a de Polignac number, because 28414115 - 28 = 28413859 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13922 + ... + 15831.

It is an arithmetic number, because the mean of its divisors is an integer number (4284576).

Almost surely, 228414115 is an apocalyptic number.

28414115 is a deficient number, since it is larger than the sum of its proper divisors (5862493).

28414115 is a wasteful number, since it uses less digits than its factorization.

28414115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29949.

The product of its digits is 1280, while the sum is 26.

The square root of 28414115 is about 5330.4891895585. The cubic root of 28414115 is about 305.1485973034.

Adding to 28414115 its reverse (51141482), we get a palindrome (79555597).

The spelling of 28414115 in words is "twenty-eight million, four hundred fourteen thousand, one hundred fifteen".

Divisors: 1 5 191 955 29753 148765 5682823 28414115