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28982372 = 2219381347
BaseRepresentation
bin110111010001…
…1110001100100
32000112110100012
41232203301210
524404413442
62513105352
7501226466
oct156436144
960473305
1028982372
11153a5981
129858258
136009a43
143bc6136
152827582
hex1ba3c64

28982372 has 12 divisors (see below), whose sum is σ = 53388720. Its totient is φ = 13728456.

The previous prime is 28982363. The next prime is 28982383. The reversal of 28982372 is 27328982.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190598 + ... + 190749.

It is an arithmetic number, because the mean of its divisors is an integer number (4449060).

Almost surely, 228982372 is an apocalyptic number.

It is an amenable number.

28982372 is a deficient number, since it is larger than the sum of its proper divisors (24406348).

28982372 is a wasteful number, since it uses less digits than its factorization.

28982372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381370 (or 381368 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 28982372 is about 5383.5278396234. The cubic root of 28982372 is about 307.1694184555.

The spelling of 28982372 in words is "twenty-eight million, nine hundred eighty-two thousand, three hundred seventy-two".

Divisors: 1 2 4 19 38 76 381347 762694 1525388 7245593 14491186 28982372