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2857488892 = 224715199409
BaseRepresentation
bin1010101001010001…
…1101000111111100
321101010212110211221
42222110131013330
521323004121032
61151313523124
7130545153256
oct25224350774
97333773757
102857488892
111236a83775
12678b734a4
1336700823b
141d170acd6
1511ace3597
hexaa51d1fc

2857488892 has 12 divisors (see below), whose sum is σ = 5107001760. Its totient is φ = 1398345536.

The previous prime is 2857488889. The next prime is 2857488917. The reversal of 2857488892 is 2988847582.

It is a self number, because there is not a number n which added to its sum of digits gives 2857488892.

It is a congruent number.

It is an unprimeable number.

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, 7599517 + ... + 7599892.

It is an arithmetic number, because the mean of its divisors is an integer number (425583480).

Almost surely, 22857488892 is an apocalyptic number.

It is an amenable number.

2857488892 is a deficient number, since it is larger than the sum of its proper divisors (2249512868).

2857488892 is a wasteful number, since it uses less digits than its factorization.

2857488892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15199460 (or 15199458 counting only the distinct ones).

The product of its digits is 20643840, while the sum is 61.

The square root of 2857488892 is about 53455.4851441833. The cubic root of 2857488892 is about 1419.0406950588.

The spelling of 2857488892 in words is "two billion, eight hundred fifty-seven million, four hundred eighty-eight thousand, eight hundred ninety-two".

Divisors: 1 2 4 47 94 188 15199409 30398818 60797636 714372223 1428744446 2857488892