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2868274729 = 10979261251
BaseRepresentation
bin1010101011110110…
…0110011000101001
321101220011110020101
42222331212120221
521333234242404
61152341025401
7131035634665
oct25275463051
97356143211
102868274729
111242080291
126806b5261
133693136a8
141d2d178a5
1511bc242a4
hexaaf66629

2868274729 has 4 divisors (see below), whose sum is σ = 2868546960. Its totient is φ = 2868002500.

The previous prime is 2868274691. The next prime is 2868274753. The reversal of 2868274729 is 9274728682.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9274728682 = 24637364341.

It is a cyclic number.

It is not a de Polignac number, because 2868274729 - 211 = 2868272681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2868274729.

It is not an unprimeable number, because it can be changed into a prime (2868274429) 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, 119647 + ... + 141604.

It is an arithmetic number, because the mean of its divisors is an integer number (717136740).

Almost surely, 22868274729 is an apocalyptic number.

It is an amenable number.

2868274729 is a deficient number, since it is larger than the sum of its proper divisors (272231).

2868274729 is a wasteful number, since it uses less digits than its factorization.

2868274729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272230.

The product of its digits is 5419008, while the sum is 55.

The square root of 2868274729 is about 53556.2762801896. The cubic root of 2868274729 is about 1420.8238836243.

The spelling of 2868274729 in words is "two billion, eight hundred sixty-eight million, two hundred seventy-four thousand, seven hundred twenty-nine".

Divisors: 1 10979 261251 2868274729