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173072080 = 2452163401
BaseRepresentation
bin10100101000011…
…01111011010000
3110001122222021001
422110031323100
5323301301310
625101311344
74201042216
oct1224157320
9401588231
10173072080
1189770685
1249b65554
1329b1971c
1418db2cb6
15102da93a
hexa50ded0

173072080 has 20 divisors (see below), whose sum is σ = 402392772. Its totient is φ = 69228800.

The previous prime is 173072071. The next prime is 173072113. The reversal of 173072080 is 80270371.

It is a happy number.

173072080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 88284816 + 84787264 = 9396^2 + 9208^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 1081621 + ... + 1081780.

Almost surely, 2173072080 is an apocalyptic number.

173072080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

173072080 is an abundant number, since it is smaller than the sum of its proper divisors (229320692).

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

173072080 is a wasteful number, since it uses less digits than its factorization.

173072080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163414 (or 2163408 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 173072080 is about 13155.6862230748. The cubic root of 173072080 is about 557.2828408785.

The spelling of 173072080 in words is "one hundred seventy-three million, seventy-two thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 2163401 4326802 8653604 10817005 17307208 21634010 34614416 43268020 86536040 173072080