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2885421869 = 11754734757
BaseRepresentation
bin1010101111111100…
…0000101100101101
321110002102121200122
42223333000230231
521402131444434
61154152334325
7131334452441
oct25377005455
97402377618
102885421869
111250822180
126863a43a5
1336ca38425
141d52dc821
1511d4aec2e
hexabfc0b2d

2885421869 has 8 divisors (see below), whose sum is σ = 3148240608. Its totient is φ = 2622687760.

The previous prime is 2885421841. The next prime is 2885421881. The reversal of 2885421869 is 9681245882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2885421869 - 216 = 2885356333 is a prime.

It is a super-2 number, since 2×28854218692 = 16651318724206906322, which contains 22 as substring.

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 2885421869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2885421269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65639 + ... + 100395.

It is an arithmetic number, because the mean of its divisors is an integer number (393530076).

Almost surely, 22885421869 is an apocalyptic number.

It is an amenable number.

2885421869 is a deficient number, since it is larger than the sum of its proper divisors (262818739).

2885421869 is a wasteful number, since it uses less digits than its factorization.

2885421869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42315.

The product of its digits is 2211840, while the sum is 53.

The square root of 2885421869 is about 53716.1229892851. The cubic root of 2885421869 is about 1423.6495866220.

The spelling of 2885421869 in words is "two billion, eight hundred eighty-five million, four hundred twenty-one thousand, eight hundred sixty-nine".

Divisors: 1 11 7547 34757 83017 382327 262311079 2885421869