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173028020 = 22511786491
BaseRepresentation
bin10100101000000…
…11001010110100
3110001120201211012
422110003022310
5323243344040
625100331352
74200466604
oct1224031264
9401521735
10173028020
1189740570
1249b43b58
1329b02659
1418da0c04
15102cc865
hexa5032b4

173028020 has 24 divisors (see below), whose sum is σ = 396391968. Its totient is φ = 62919200.

The previous prime is 173027993. The next prime is 173028059. The reversal of 173028020 is 20820371.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 393026 + ... + 393465.

It is an arithmetic number, because the mean of its divisors is an integer number (16516332).

Almost surely, 2173028020 is an apocalyptic number.

173028020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

173028020 is an abundant number, since it is smaller than the sum of its proper divisors (223363948).

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

173028020 is a wasteful number, since it uses less digits than its factorization.

173028020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786511 (or 786509 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 173028020 is about 13154.0115554153. The cubic root of 173028020 is about 557.2355465838.

Adding to 173028020 its reverse (20820371), we get a palindrome (193848391).

The spelling of 173028020 in words is "one hundred seventy-three million, twenty-eight thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 786491 1572982 3145964 3932455 7864910 8651401 15729820 17302802 34605604 43257005 86514010 173028020