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2855955197 = 31450720441
BaseRepresentation
bin1010101000111010…
…0110101011111101
321101000222120000102
42222032212223331
521322111031242
61151221010445
7130526134664
oct25216465375
97330876012
102855955197
111236126457
12678553a25
133668bc124
141d142bddb
1511aadde32
hexaa3a6afd

2855955197 has 8 divisors (see below), whose sum is σ = 2948881152. Its totient is φ = 2763079200.

The previous prime is 2855955187. The next prime is 2855955211. The reversal of 2855955197 is 7915595582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2855955197 - 26 = 2855955133 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 (2855955187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129497 + ... + 149937.

It is an arithmetic number, because the mean of its divisors is an integer number (368610144).

Almost surely, 22855955197 is an apocalyptic number.

It is an amenable number.

2855955197 is a deficient number, since it is larger than the sum of its proper divisors (92925955).

2855955197 is a wasteful number, since it uses less digits than its factorization.

2855955197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24979.

The product of its digits is 5670000, while the sum is 56.

The square root of 2855955197 is about 53441.1376843720. The cubic root of 2855955197 is about 1418.7867698829.

The spelling of 2855955197 in words is "two billion, eight hundred fifty-five million, nine hundred fifty-five thousand, one hundred ninety-seven".

Divisors: 1 31 4507 20441 139717 633671 92127587 2855955197