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172028382 = 2334982153
BaseRepresentation
bin10100100000011…
…11000111011110
3102222200221120120
422100033013132
5323014402012
625023055410
74156134321
oct1220170736
9388627516
10172028382
1189118519
1249741566
1329842656
1418bc07b8
151018158c
hexa40f1de

172028382 has 16 divisors (see below), whose sum is σ = 345046800. Its totient is φ = 57177792.

The previous prime is 172028359. The next prime is 172028383. The reversal of 172028382 is 283820271.

172028382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172028383) 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, 38983 + ... + 43170.

It is an arithmetic number, because the mean of its divisors is an integer number (21565425).

Almost surely, 2172028382 is an apocalyptic number.

172028382 is an abundant number, since it is smaller than the sum of its proper divisors (173018418).

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

172028382 is a wasteful number, since it uses less digits than its factorization.

172028382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82507.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 172028382 is about 13115.9590575756. The cubic root of 172028382 is about 556.1603642630.

The spelling of 172028382 in words is "one hundred seventy-two million, twenty-eight thousand, three hundred eighty-two".

Divisors: 1 2 3 6 349 698 1047 2094 82153 164306 246459 492918 28671397 57342794 86014191 172028382