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2874897439 = 6742908917
BaseRepresentation
bin1010101101011011…
…0111010000011111
321102100121220212221
42223112313100133
521341433204224
61153135010211
7131146140121
oct25326672037
97370556787
102874897439
111245893aa7
12682969967
1336a7c1c5b
141d3b5d211
1511c5d16e4
hexab5b741f

2874897439 has 4 divisors (see below), whose sum is σ = 2917806424. Its totient is φ = 2831988456.

The previous prime is 2874897413. The next prime is 2874897463. The reversal of 2874897439 is 9347984782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9347984782 = 24673992391.

It is a cyclic number.

It is not a de Polignac number, because 2874897439 - 213 = 2874889247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2874897469) 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, 21454392 + ... + 21454525.

It is an arithmetic number, because the mean of its divisors is an integer number (729451606).

Almost surely, 22874897439 is an apocalyptic number.

2874897439 is a deficient number, since it is larger than the sum of its proper divisors (42908985).

2874897439 is an equidigital number, since it uses as much as digits as its factorization.

2874897439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42908984.

The product of its digits is 24385536, while the sum is 61.

The square root of 2874897439 is about 53618.0700790321. The cubic root of 2874897439 is about 1421.9165813281.

The spelling of 2874897439 in words is "two billion, eight hundred seventy-four million, eight hundred ninety-seven thousand, four hundred thirty-nine".

Divisors: 1 67 42908917 2874897439