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28908466 = 2175914411
BaseRepresentation
bin110111001000…
…1101110110010
32000101200221221
41232101232302
524400032331
62511335254
7500501146
oct156215662
960350857
1028908466
11153553a4
12982152a
135cb2202
143ba7226
152810711
hex1b91bb2

28908466 has 16 divisors (see below), whose sum is σ = 46694880. Its totient is φ = 13372480.

The previous prime is 28908421. The next prime is 28908469. The reversal of 28908466 is 66480982.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28908469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5200 + ... + 9211.

It is an arithmetic number, because the mean of its divisors is an integer number (2918430).

Almost surely, 228908466 is an apocalyptic number.

28908466 is a deficient number, since it is larger than the sum of its proper divisors (17786414).

28908466 is a wasteful number, since it uses less digits than its factorization.

28908466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14489.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 28908466 is about 5376.6593717661. The cubic root of 28908466 is about 306.9080988381.

The spelling of 28908466 in words is "twenty-eight million, nine hundred eight thousand, four hundred sixty-six".

Divisors: 1 2 17 34 59 118 1003 2006 14411 28822 244987 489974 850249 1700498 14454233 28908466