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172530383130146 = 21933713472620891
BaseRepresentation
bin100111001110101001011100…
…001100110000111000100010
3211121212202002001012210102102
4213032221130030300320202
5140103214211040131041
61410535210330250402
751224623505422256
oct4716513414607042
9747782061183372
10172530383130146
114aa787a7467998
1217425664286a02
1375367120ac9a2
14308672d608266
1514e2da048009b
hex9cea5c330e22

172530383130146 has 16 divisors (see below), whose sum is σ = 273224751689760. Its totient is φ = 81482411142720.

The previous prime is 172530383130113. The next prime is 172530383130173. The reversal of 172530383130146 is 641031383035271.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 172530383130146.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6736297640 + ... + 6736323251.

It is an arithmetic number, because the mean of its divisors is an integer number (17076546980610).

Almost surely, 2172530383130146 is an apocalyptic number.

172530383130146 is a deficient number, since it is larger than the sum of its proper divisors (100694368559614).

172530383130146 is a wasteful number, since it uses less digits than its factorization.

172530383130146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13472621249.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 172530383130146 in words is "one hundred seventy-two trillion, five hundred thirty billion, three hundred eighty-three million, one hundred thirty thousand, one hundred forty-six".

Divisors: 1 2 19 38 337 674 6403 12806 13472620891 26945241782 255979796929 511959593858 4540273240267 9080546480534 86265191565073 172530383130146