Search a number
-
+
28276176 = 243718297
BaseRepresentation
bin110101111011…
…1010111010000
31222012120121210
41223313113100
524214314201
62450020120
7462225555
oct153672720
958176553
1028276176
1114a63345
129577640
135b20486
143a80a2c
1527381d6
hex1af75d0

28276176 has 40 divisors (see below), whose sum is σ = 74084544. Its totient is φ = 9291520.

The previous prime is 28276159. The next prime is 28276201. The reversal of 28276176 is 67167282.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741 + ... + 7556.

Almost surely, 228276176 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28276176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37042272).

28276176 is an abundant number, since it is smaller than the sum of its proper divisors (45808368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28276176 is a wasteful number, since it uses less digits than its factorization.

28276176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8379 (or 8373 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 28276176 is about 5317.5347671642. The cubic root of 28276176 is about 304.6540052121.

The spelling of 28276176 in words is "twenty-eight million, two hundred seventy-six thousand, one hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 71 142 213 284 426 568 852 1136 1704 3408 8297 16594 24891 33188 49782 66376 99564 132752 199128 398256 589087 1178174 1767261 2356348 3534522 4712696 7069044 9425392 14138088 28276176