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28552150 = 2521151913
BaseRepresentation
bin110110011101…
…0101111010110
31222201121012001
41230322233112
524302132100
62455545514
7464455264
oct154725726
958647161
1028552150
1115131720
12968b29a
135bb8c83
143b13434
15278ed6a
hex1b3abd6

28552150 has 24 divisors (see below), whose sum is σ = 57936024. Its totient is φ = 10382400.

The previous prime is 28552133. The next prime is 28552151. The reversal of 28552150 is 5125582.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28552151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25407 + ... + 26506.

It is an arithmetic number, because the mean of its divisors is an integer number (2414001).

Almost surely, 228552150 is an apocalyptic number.

28552150 is an abundant number, since it is smaller than the sum of its proper divisors (29383874).

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

28552150 is a wasteful number, since it uses less digits than its factorization.

28552150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51936 (or 51931 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 28552150 is about 5343.4211887142. The cubic root of 28552150 is about 305.6419338284.

It can be divided in two parts, 2855 and 2150, that added together give a palindrome (5005).

The spelling of 28552150 in words is "twenty-eight million, five hundred fifty-two thousand, one hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 51913 103826 259565 519130 571043 1142086 1297825 2595650 2855215 5710430 14276075 28552150