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172000544 = 255375017
BaseRepresentation
bin10100100000010…
…00010100100000
3102222122112101112
422100020110200
5323013004134
625022322452
74155660212
oct1220102440
9388575345
10172000544
11890a9611
1249729428
1329832a91
1418bb45b2
15101781ce
hexa408520

172000544 has 12 divisors (see below), whose sum is σ = 338626134. Its totient is φ = 86000256.

The previous prime is 172000513. The next prime is 172000547. The reversal of 172000544 is 445000271.

It can be written as a sum of positive squares in only one way, i.e., 168688144 + 3312400 = 12988^2 + 1820^2 .

It is not an unprimeable number, because it can be changed into a prime (172000547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2687477 + ... + 2687540.

Almost surely, 2172000544 is an apocalyptic number.

It is an amenable number.

172000544 is a deficient number, since it is larger than the sum of its proper divisors (166625590).

172000544 is an equidigital number, since it uses as much as digits as its factorization.

172000544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5375027 (or 5375019 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 172000544 is about 13114.8977883932. The cubic root of 172000544 is about 556.1303629589.

The spelling of 172000544 in words is "one hundred seventy-two million, five hundred forty-four", and thus it is an aban number.

Divisors: 1 2 4 8 16 32 5375017 10750034 21500068 43000136 86000272 172000544