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2868190193 = 11260744563
BaseRepresentation
bin1010101011110101…
…0001101111110001
321101220000011021102
42222331101233301
521333224041233
61152335134145
7131035133351
oct25275215761
97356004242
102868190193
111242022820
12680674355
133692b407b
141d2cd4b61
1511bc091e8
hexaaf51bf1

2868190193 has 4 divisors (see below), whose sum is σ = 3128934768. Its totient is φ = 2607445620.

The previous prime is 2868190159. The next prime is 2868190231. The reversal of 2868190193 is 3910918682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2868190193 - 28 = 2868189937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2868190123) 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 3 ways as a sum of consecutive naturals, for example, 130372271 + ... + 130372292.

It is an arithmetic number, because the mean of its divisors is an integer number (782233692).

Almost surely, 22868190193 is an apocalyptic number.

It is an amenable number.

2868190193 is a deficient number, since it is larger than the sum of its proper divisors (260744575).

2868190193 is a wasteful number, since it uses less digits than its factorization.

2868190193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260744574.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 2868190193 is about 53555.4870484808. The cubic root of 2868190193 is about 1420.8099249489.

The spelling of 2868190193 in words is "two billion, eight hundred sixty-eight million, one hundred ninety thousand, one hundred ninety-three".

Divisors: 1 11 260744563 2868190193