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28414912 = 26443983
BaseRepresentation
bin110110001100…
…1001111000000
31222110121221011
41230121033000
524233234122
62453010304
7463344211
oct154311700
958417834
1028414912
11150485a9
129623994
135b6b676
143ab9408
152764377
hex1b193c0

28414912 has 14 divisors (see below), whose sum is σ = 56385968. Its totient is φ = 14207424.

The previous prime is 28414907. The next prime is 28414951. The reversal of 28414912 is 21941482.

It is a congruent 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 as a sum of consecutive naturals, namely, 221928 + ... + 222055.

Almost surely, 228414912 is an apocalyptic number.

It is an amenable number.

28414912 is a deficient number, since it is larger than the sum of its proper divisors (27971056).

28414912 is an equidigital number, since it uses as much as digits as its factorization.

28414912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443995 (or 443985 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 28414912 is about 5330.5639476513. The cubic root of 28414912 is about 305.1514503591.

The spelling of 28414912 in words is "twenty-eight million, four hundred fourteen thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 32 64 443983 887966 1775932 3551864 7103728 14207456 28414912