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172424424271 = 11597912892609
BaseRepresentation
bin1010000010010101001…
…0111110101101001111
3121111001112222021222211
42200211102332231033
510311111123034041
6211113301451251
715312560265331
oct2404522765517
9544045867884
10172424424271
1167141101aa0
1229500710b27
131334b314b68
1484b9a53451
1547425e8481
hex28254beb4f

172424424271 has 32 divisors (see below), whose sum is σ = 193933440000. Its totient is φ = 151965864960.

The previous prime is 172424424259. The next prime is 172424424299.

172424424271 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 172424424271 - 25 = 172424424239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172424424251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66087015 + ... + 66089623.

It is an arithmetic number, because the mean of its divisors is an integer number (6060420000).

Almost surely, 2172424424271 is an apocalyptic number.

172424424271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

172424424271 is a deficient number, since it is larger than the sum of its proper divisors (21509015729).

172424424271 is a wasteful number, since it uses less digits than its factorization.

172424424271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047.

The product of its digits is 200704, while the sum is 40.

It can be divided in two parts, 172424 and 424271, that added together give a palindrome (596695).

The spelling of 172424424271 in words is "one hundred seventy-two billion, four hundred twenty-four million, four hundred twenty-four thousand, two hundred seventy-one".

Divisors: 1 11 59 79 649 869 1289 2609 4661 14179 28699 51271 76051 101831 153931 206111 836561 1120141 1693241 2267221 3363001 6008029 12160549 36993011 66088319 133766039 198417059 265677079 2182587649 2922447869 15674947661 172424424271