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2897916793 = 2939890501
BaseRepresentation
bin1010110010111010…
…1011001101111001
321110221221102111121
42230232223031321
521413331314133
61155320225241
7131545613002
oct25456531571
97427842447
102897916793
111257886862
1268a60b221
133724c1785
141d6c321a9
1511e62c02d
hexacbab379

2897916793 has 4 divisors (see below), whose sum is σ = 2907807588. Its totient is φ = 2888026000.

The previous prime is 2897916787. The next prime is 2897916811. The reversal of 2897916793 is 3976197982.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2003189049 + 894727744 = 44757^2 + 29912^2 .

It is a cyclic number.

It is not a de Polignac number, because 2897916793 - 25 = 2897916761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2897916733) 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, 4944958 + ... + 4945543.

It is an arithmetic number, because the mean of its divisors is an integer number (726951897).

Almost surely, 22897916793 is an apocalyptic number.

It is an amenable number.

2897916793 is a deficient number, since it is larger than the sum of its proper divisors (9890795).

2897916793 is an equidigital number, since it uses as much as digits as its factorization.

2897916793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9890794.

The product of its digits is 10287648, while the sum is 61.

The square root of 2897916793 is about 53832.3025050945. The cubic root of 2897916793 is about 1425.7016006261.

The spelling of 2897916793 in words is "two billion, eight hundred ninety-seven million, nine hundred sixteen thousand, seven hundred ninety-three".

Divisors: 1 293 9890501 2897916793