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172000895 = 51121072657
BaseRepresentation
bin10100100000010…
…00011001111111
3102222122112212112
422100020121333
5323013012040
625022324235
74155661223
oct1220103177
9388575775
10172000895
11890a9900
124972967b
1329832ca1
1418bb4783
1510178365
hexa40867f

172000895 has 24 divisors (see below), whose sum is σ = 229077072. Its totient is φ = 123875840.

The previous prime is 172000889. The next prime is 172000919. The reversal of 172000895 is 598000271.

It is not a de Polignac number, because 172000895 - 216 = 171935359 is a prime.

It is a Duffinian number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 63407 + ... + 66063.

It is an arithmetic number, because the mean of its divisors is an integer number (9544878).

Almost surely, 2172000895 is an apocalyptic number.

172000895 is a deficient number, since it is larger than the sum of its proper divisors (57076177).

172000895 is a wasteful number, since it uses less digits than its factorization.

172000895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791 (or 2780 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 172000895 is about 13114.9111701147. The cubic root of 172000895 is about 556.1307412554.

The spelling of 172000895 in words is "one hundred seventy-two million, eight hundred ninety-five", and thus it is an aban number.

Divisors: 1 5 11 55 107 121 535 605 1177 2657 5885 12947 13285 29227 64735 146135 284299 321497 1421495 1607485 3127289 15636445 34400179 172000895