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173130984 = 233213184969
BaseRepresentation
bin10100101000111…
…00010011101000
3110001202222001200
422110130103220
5323310142414
625102444200
74201406025
oct1224342350
9401688050
10173130984
1189800964
1249b93660
1329b3a490
1418dca54c
15102ed109
hexa51c4e8

173130984 has 48 divisors (see below), whose sum is σ = 504968100. Its totient is φ = 53270784.

The previous prime is 173130967. The next prime is 173130989. The reversal of 173130984 is 489031371.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 171872100 + 1258884 = 13110^2 + 1122^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (173130989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91549 + ... + 93420.

Almost surely, 2173130984 is an apocalyptic number.

It is an amenable number.

173130984 is an abundant number, since it is smaller than the sum of its proper divisors (331837116).

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

173130984 is a wasteful number, since it uses less digits than its factorization.

173130984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184994 (or 184987 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 173130984 is about 13157.9247603868. The cubic root of 173130984 is about 557.3460562839.

The spelling of 173130984 in words is "one hundred seventy-three million, one hundred thirty thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 184969 369938 554907 739876 1109814 1479752 1664721 2219628 2404597 3329442 4439256 4809194 6658884 7213791 9618388 13317768 14427582 19236776 21641373 28855164 43282746 57710328 86565492 173130984