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172135064 = 23173140829
BaseRepresentation
bin10100100001010…
…01001010011000
3102222220100220202
422100221022120
5323031310224
625025241332
74160060333
oct1220511230
9388810822
10172135064
1189190692
1249793248
132987c08a
1418c0b61a
15101a2eae
hexa429298

172135064 has 32 divisors (see below), whose sum is σ = 352771200. Its totient is φ = 78389760.

The previous prime is 172135057. The next prime is 172135069. The reversal of 172135064 is 460531271.

It is a super-3 number, since 3×1721350643 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172135069) 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, 16199 + ... + 24630.

It is an arithmetic number, because the mean of its divisors is an integer number (11024100).

Almost surely, 2172135064 is an apocalyptic number.

It is an amenable number.

172135064 is an abundant number, since it is smaller than the sum of its proper divisors (180636136).

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

172135064 is a wasteful number, since it uses less digits than its factorization.

172135064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40883 (or 40879 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 172135064 is about 13120.0253048536. The cubic root of 172135064 is about 556.2753066128.

The spelling of 172135064 in words is "one hundred seventy-two million, one hundred thirty-five thousand, sixty-four".

Divisors: 1 2 4 8 17 31 34 62 68 124 136 248 527 1054 2108 4216 40829 81658 163316 326632 694093 1265699 1388186 2531398 2776372 5062796 5552744 10125592 21516883 43033766 86067532 172135064