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2893195091 = 6691432401
BaseRepresentation
bin1010110001110010…
…1010011101010011
321110122001112112202
42230130222131103
521411124220331
61155031113415
7131460516053
oct25434523523
97418045482
102893195091
111255151326
12688b1286b
1337152a577
141d6363563
1511dee7ecb
hexac72a753

2893195091 has 4 divisors (see below), whose sum is σ = 2893634184. Its totient is φ = 2892756000.

The previous prime is 2893195051. The next prime is 2893195127. The reversal of 2893195091 is 1905913982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2893195091 - 226 = 2826086227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2893195051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209510 + ... + 222891.

It is an arithmetic number, because the mean of its divisors is an integer number (723408546).

Almost surely, 22893195091 is an apocalyptic number.

2893195091 is a deficient number, since it is larger than the sum of its proper divisors (439093).

2893195091 is an equidigital number, since it uses as much as digits as its factorization.

2893195091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439092.

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 2893195091 is about 53788.4289694354. The cubic root of 2893195091 is about 1424.9268604710.

The spelling of 2893195091 in words is "two billion, eight hundred ninety-three million, one hundred ninety-five thousand, ninety-one".

Divisors: 1 6691 432401 2893195091