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2868078481 = 19883170953
BaseRepresentation
bin1010101011110011…
…0110011110010001
321101212210111000221
42222330312132101
521333212002411
61152332513041
7131034156562
oct25274663621
97355714027
102868078481
111241a568a4
1268061b781
13369275278
141d2ca6169
1511bbd6071
hexaaf36791

2868078481 has 8 divisors (see below), whose sum is σ = 3022466720. Its totient is φ = 2714033952.

The previous prime is 2868078431. The next prime is 2868078487. The reversal of 2868078481 is 1848708682.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2868078481 is a prime.

It is a super-2 number, since 2×28680784812 = 16451748346350534722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2868078487) 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, 68700 + ... + 102253.

It is an arithmetic number, because the mean of its divisors is an integer number (377808340).

Almost surely, 22868078481 is an apocalyptic number.

It is an amenable number.

2868078481 is a deficient number, since it is larger than the sum of its proper divisors (154388239).

2868078481 is a wasteful number, since it uses less digits than its factorization.

2868078481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171855.

The product of its (nonzero) digits is 1376256, while the sum is 52.

The square root of 2868078481 is about 53554.4440826343. Note that the first 3 decimals coincide. The cubic root of 2868078481 is about 1420.7914785223.

The spelling of 2868078481 in words is "two billion, eight hundred sixty-eight million, seventy-eight thousand, four hundred eighty-one".

Divisors: 1 19 883 16777 170953 3248107 150951499 2868078481