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181084252055 = 5722932256361
BaseRepresentation
bin1010100010100101110…
…1100110011110010111
3122022102001222010110012
42220221131212132113
510431330032031210
6215104451550435
716040302513550
oct2505135463627
9568361863405
10181084252055
116a885380863
122b1188bb41b
13140cb470305
148a9bbd9327
154a9c9cd305
hex2a29766797

181084252055 has 16 divisors (see below), whose sum is σ = 248452532544. Its totient is φ = 124117850880.

The previous prime is 181084252051. The next prime is 181084252057. The reversal of 181084252055 is 550252480181.

It is not a de Polignac number, because 181084252055 - 22 = 181084252051 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 (181084252051) 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, 1047926 + ... + 1208435.

It is an arithmetic number, because the mean of its divisors is an integer number (15528283284).

Almost surely, 2181084252055 is an apocalyptic number.

181084252055 is a deficient number, since it is larger than the sum of its proper divisors (67368280489).

181084252055 is a wasteful number, since it uses less digits than its factorization.

181084252055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258666.

The product of its (nonzero) digits is 128000, while the sum is 41.

The spelling of 181084252055 in words is "one hundred eighty-one billion, eighty-four million, two hundred fifty-two thousand, fifty-five".

Divisors: 1 5 7 35 2293 11465 16051 80255 2256361 11281805 15794527 78972635 5173835773 25869178865 36216850411 181084252055