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181648080055 = 5138333669709
BaseRepresentation
bin1010100100101100010…
…0011011110010110111
3122100212100220120001201
42221023010123302313
510434003402030210
6215240432433331
716060260130141
oct2511304336267
9570770816051
10181648080055
1170044673112
122b2556a8847
131418b212850
148b12a47c91
154ad225353a
hex2a4b11bcb7

181648080055 has 16 divisors (see below), whose sum is σ = 237573473760. Its totient is φ = 132523970688.

The previous prime is 181648080041. The next prime is 181648080067. The reversal of 181648080055 is 550080846181.

It is a cyclic number.

It is not a de Polignac number, because 181648080055 - 27 = 181648079927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 181648079987 and 181648080014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16829460 + ... + 16840249.

It is an arithmetic number, because the mean of its divisors is an integer number (14848342110).

Almost surely, 2181648080055 is an apocalyptic number.

181648080055 is a deficient number, since it is larger than the sum of its proper divisors (55925393705).

181648080055 is a wasteful number, since it uses less digits than its factorization.

181648080055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33669810.

The product of its (nonzero) digits is 307200, while the sum is 46.

The spelling of 181648080055 in words is "one hundred eighty-one billion, six hundred forty-eight million, eighty thousand, fifty-five".

Divisors: 1 5 13 65 83 415 1079 5395 33669709 168348545 437706217 2188531085 2794585847 13972929235 36329616011 181648080055