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172028545060 = 22517505966309
BaseRepresentation
bin1010000000110110110…
…0110100100000100100
3121110000222001112210211
42200031230310200210
510304303301420220
6211010120425204
715300012335461
oct2401554644044
9543028045724
10172028545060
1166a586a1099
1229410018204
13132b72b70c8
14847d242668
15471c99ab5a
hex280db34824

172028545060 has 24 divisors (see below), whose sum is σ = 382510530360. Its totient is φ = 64763687424.

The previous prime is 172028545049. The next prime is 172028545067. The reversal of 172028545060 is 60545820271.

It can be written as a sum of positive squares in 4 ways, for example, as 50326640896 + 121701904164 = 224336^2 + 348858^2 .

It is not an unprimeable number, because it can be changed into a prime (172028545067) 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, 252982815 + ... + 252983494.

It is an arithmetic number, because the mean of its divisors is an integer number (15937938765).

Almost surely, 2172028545060 is an apocalyptic number.

172028545060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172028545060 is an abundant number, since it is smaller than the sum of its proper divisors (210481985300).

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

172028545060 is a wasteful number, since it uses less digits than its factorization.

172028545060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505966335 (or 505966333 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 172028545060 in words is "one hundred seventy-two billion, twenty-eight million, five hundred forty-five thousand, sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 505966309 1011932618 2023865236 2529831545 5059663090 8601427253 10119326180 17202854506 34405709012 43007136265 86014272530 172028545060