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28108466 = 297144889
BaseRepresentation
bin110101100111…
…0011010110010
31221220001120022
41223032122302
524143432331
62442243442
7460626611
oct153163262
957801508
1028108466
1114959341
1294b6582
135a92039
143a39878
15270367b
hex1ace6b2

28108466 has 8 divisors (see below), whose sum is σ = 42597660. Its totient is φ = 13909248.

The previous prime is 28108447. The next prime is 28108477. The reversal of 28108466 is 66480182.

It can be written as a sum of positive squares in 2 ways, for example, as 27931225 + 177241 = 5285^2 + 421^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72251 + ... + 72638.

Almost surely, 228108466 is an apocalyptic number.

28108466 is a deficient number, since it is larger than the sum of its proper divisors (14489194).

28108466 is a wasteful number, since it uses less digits than its factorization.

28108466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144988.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 28108466 is about 5301.7417892613. The cubic root of 28108466 is about 304.0504951325.

The spelling of 28108466 in words is "twenty-eight million, one hundred eight thousand, four hundred sixty-six".

Divisors: 1 2 97 194 144889 289778 14054233 28108466