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28968214 = 21110113037
BaseRepresentation
bin110111010000…
…0010100010110
32000111201220211
41232200110112
524403440324
62512520034
7501140302
oct156402426
960451824
1028968214
1115396280
12985001a
136003472
143bc0d02
152823294
hex1ba0516

28968214 has 16 divisors (see below), whose sum is σ = 47875536. Its totient is φ = 13036000.

The previous prime is 28968211. The next prime is 28968223. The reversal of 28968214 is 41286982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28968211) by changing a digit.

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, 4297 + ... + 8740.

It is an arithmetic number, because the mean of its divisors is an integer number (2992221).

Almost surely, 228968214 is an apocalyptic number.

28968214 is a deficient number, since it is larger than the sum of its proper divisors (18907322).

28968214 is a wasteful number, since it uses less digits than its factorization.

28968214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13151.

The product of its digits is 55296, while the sum is 40.

The square root of 28968214 is about 5382.2127419863. The cubic root of 28968214 is about 307.1193924952.

The spelling of 28968214 in words is "twenty-eight million, nine hundred sixty-eight thousand, two hundred fourteen".

Divisors: 1 2 11 22 101 202 1111 2222 13037 26074 143407 286814 1316737 2633474 14484107 28968214