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171130222001 = 12726919872521
BaseRepresentation
bin1001111101100000100…
…1111111010110110001
3121100201100201000020102
42133120021333112301
510300433314101001
6210341030322145
715235523613014
oct2373011772661
9540640630212
10171130222001
1166637604742
12291bb1b9355
13131a3159abb
1483d5c0137b
1546b8ba0e6b
hex27d827f5b1

171130222001 has 16 divisors (see below), whose sum is σ = 173274716160. Its totient is φ = 168999384960.

The previous prime is 171130221961. The next prime is 171130222009. The reversal of 171130222001 is 100222031171.

It is a cyclic number.

It is not a de Polignac number, because 171130222001 - 26 = 171130221937 is a prime.

It is a super-2 number, since 2×1711302220012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171130222009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67880621 + ... + 67883141.

It is an arithmetic number, because the mean of its divisors is an integer number (10829669760).

Almost surely, 2171130222001 is an apocalyptic number.

It is an amenable number.

171130222001 is a deficient number, since it is larger than the sum of its proper divisors (2144494159).

171130222001 is a wasteful number, since it uses less digits than its factorization.

171130222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 171130222001 its reverse (100222031171), we get a palindrome (271352253172).

The spelling of 171130222001 in words is "one hundred seventy-one billion, one hundred thirty million, two hundred twenty-two thousand, one".

Divisors: 1 127 269 1987 2521 34163 252349 320167 534503 678149 5009227 67881881 86124923 636171829 1347482063 171130222001