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30255771670205 = 517343917965787
BaseRepresentation
bin1101110000100011110001…
…00001011101011010111101
310222010102102202012211200112
412320101320201131122331
512431202310021421310
6144203150513435405
76241623140615624
oct670217041353275
9128112382184615
1030255771670205
119705445383584
12348793086bb65
1313b61511a0bc3
1476855c5326bb
1537704e677705
hex1b847885d6bd

30255771670205 has 16 divisors (see below), whose sum is σ = 36525113495424. Its totient is φ = 24059222771520.

The previous prime is 30255771670169. The next prime is 30255771670231. The reversal of 30255771670205 is 50207617755203.

It is not a de Polignac number, because 30255771670205 - 26 = 30255771670141 is a prime.

It is a Duffinian number.

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, 184679 + ... + 7781108.

It is an arithmetic number, because the mean of its divisors is an integer number (2282819593464).

Almost surely, 230255771670205 is an apocalyptic number.

It is an amenable number.

30255771670205 is a deficient number, since it is larger than the sum of its proper divisors (6269341825219).

30255771670205 is a wasteful number, since it uses less digits than its factorization.

30255771670205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7970356.

The product of its (nonzero) digits is 3087000, while the sum is 50.

The spelling of 30255771670205 in words is "thirty trillion, two hundred fifty-five billion, seven hundred seventy-one million, six hundred seventy thousand, two hundred five".

Divisors: 1 5 173 865 4391 21955 759643 3798215 7965787 39828935 1378081151 6890405755 34977770717 174888853585 6051154334041 30255771670205