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2928973892 = 221356326421
BaseRepresentation
bin1010111010010100…
…1001100001000100
321120010101021211112
42232211021201010
521444304131032
61202350024152
7132403603325
oct25645114104
97503337745
102928973892
111273369489
12698aa8058
13378a76960
141dadd844c
151222141b2
hexae949844

2928973892 has 12 divisors (see below), whose sum is σ = 5519989356. Its totient is φ = 1351834080.

The previous prime is 2928973811. The next prime is 2928973897. The reversal of 2928973892 is 2983798292.

It can be written as a sum of positive squares in 2 ways, for example, as 1829786176 + 1099187716 = 42776^2 + 33154^2 .

It is not an unprimeable number, because it can be changed into a prime (2928973897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28163159 + ... + 28163262.

It is an arithmetic number, because the mean of its divisors is an integer number (459999113).

Almost surely, 22928973892 is an apocalyptic number.

It is an amenable number.

2928973892 is a deficient number, since it is larger than the sum of its proper divisors (2591015464).

2928973892 is a wasteful number, since it uses less digits than its factorization.

2928973892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56326438 (or 56326436 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 59.

The square root of 2928973892 is about 54119.9953067256. The cubic root of 2928973892 is about 1430.7766156610.

The spelling of 2928973892 in words is "two billion, nine hundred twenty-eight million, nine hundred seventy-three thousand, eight hundred ninety-two".

Divisors: 1 2 4 13 26 52 56326421 112652842 225305684 732243473 1464486946 2928973892