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172048000 = 275310753
BaseRepresentation
bin10100100000100…
…11111010000000
3102222201221111011
422100103322000
5323021014000
625023330304
74156245445
oct1220237200
9388657434
10172048000
1189131233
1249750994
132984b567
1418bc79cc
15101872ba
hexa413e80

172048000 has 64 divisors (see below), whose sum is σ = 427794120. Its totient is φ = 68812800.

The previous prime is 172047991. The next prime is 172048003. The reversal of 172048000 is 840271.

It can be written as a sum of positive squares in 4 ways, for example, as 96983104 + 75064896 = 9848^2 + 8664^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (172048003) 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, 10624 + ... + 21376.

Almost surely, 2172048000 is an apocalyptic number.

172048000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172048000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213897060).

172048000 is an abundant number, since it is smaller than the sum of its proper divisors (255746120).

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

172048000 is an equidigital number, since it uses as much as digits as its factorization.

172048000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10782 (or 10760 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 172048000 is about 13116.7069037926. The cubic root of 172048000 is about 556.1815048430.

Adding to 172048000 its reverse (840271), we get a palindrome (172888271).

The spelling of 172048000 in words is "one hundred seventy-two million, forty-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 640 800 1000 1600 2000 3200 4000 8000 10753 16000 21506 43012 53765 86024 107530 172048 215060 268825 344096 430120 537650 688192 860240 1075300 1344125 1376384 1720480 2150600 2688250 3440960 4301200 5376500 6881920 8602400 10753000 17204800 21506000 34409600 43012000 86024000 172048000