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172314400 = 2552215393
BaseRepresentation
bin10100100010101…
…00111100100000
3110000020110220211
422101110330200
5323103030100
625033143504
74161435226
oct1221247440
9400213824
10172314400
11892a33a5
124985ab94
13299128ab
1418c56b16
15101db1ba
hexa454f20

172314400 has 36 divisors (see below), whose sum is σ = 420664482. Its totient is φ = 68925440.

The previous prime is 172314343. The next prime is 172314407. The reversal of 172314400 is 4413271.

It can be written as a sum of positive squares in 3 ways, for example, as 164762896 + 7551504 = 12836^2 + 2748^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172314407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106897 + ... + 108496.

Almost surely, 2172314400 is an apocalyptic number.

172314400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172314400 is an abundant number, since it is smaller than the sum of its proper divisors (248350082).

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

172314400 is a wasteful number, since it uses less digits than its factorization.

172314400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215413 (or 215400 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 172314400 is about 13126.8579637322. The cubic root of 172314400 is about 556.4684215650.

Adding to 172314400 its reverse (4413271), we get a palindrome (176727671).

The spelling of 172314400 in words is "one hundred seventy-two million, three hundred fourteen thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 215393 430786 861572 1076965 1723144 2153930 3446288 4307860 5384825 6892576 8615720 10769650 17231440 21539300 34462880 43078600 86157200 172314400