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28379098 = 2112117269
BaseRepresentation
bin110110001000…
…0011111011010
31222101210210201
41230100133122
524231112343
62452132414
7463134616
oct154203732
958353721
1028379098
1115023700
12960710a
135b58287
143aaa346
15275894d
hex1b107da

28379098 has 12 divisors (see below), whose sum is σ = 46790730. Its totient is φ = 12899480.

The previous prime is 28379089. The next prime is 28379161. The reversal of 28379098 is 89097382.

It can be written as a sum of positive squares in only one way, i.e., 18688329 + 9690769 = 4323^2 + 3113^2 .

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 5 ways as a sum of consecutive naturals, for example, 58393 + ... + 58876.

Almost surely, 228379098 is an apocalyptic number.

28379098 is a deficient number, since it is larger than the sum of its proper divisors (18411632).

28379098 is a wasteful number, since it uses less digits than its factorization.

28379098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117293 (or 117282 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 28379098 is about 5327.2035816177. The cubic root of 28379098 is about 305.0231927181.

It can be divided in two parts, 2837 and 9098, that added together give a triangular number (11935 = T154).

The spelling of 28379098 in words is "twenty-eight million, three hundred seventy-nine thousand, ninety-eight".

Divisors: 1 2 11 22 121 242 117269 234538 1289959 2579918 14189549 28379098