Search a number
-
+
2885082661 = 29613162293
BaseRepresentation
bin1010101111110110…
…1101111000100101
321110001210101101101
42223331231320211
521402040121121
61154141200101
7131331540466
oct25375557045
97401711341
102885082661
11125061033a
12686260031
1336c949c06
141d5250d6d
1511d444491
hexabf6de25

2885082661 has 8 divisors (see below), whose sum is σ = 2989455480. Its totient is φ = 2781035712.

The previous prime is 2885082643. The next prime is 2885082667. The reversal of 2885082661 is 1662805882.

It can be written as a sum of positive squares in 4 ways, for example, as 15444900 + 2869637761 = 3930^2 + 53569^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2885082661 - 213 = 2885074469 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 (2885082667) 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, 63370 + ... + 98923.

It is an arithmetic number, because the mean of its divisors is an integer number (373681935).

Almost surely, 22885082661 is an apocalyptic number.

It is an amenable number.

2885082661 is a deficient number, since it is larger than the sum of its proper divisors (104372819).

2885082661 is a wasteful number, since it uses less digits than its factorization.

2885082661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162935.

The product of its (nonzero) digits is 368640, while the sum is 46.

The square root of 2885082661 is about 53712.9654832053. The cubic root of 2885082661 is about 1423.5937967149.

The spelling of 2885082661 in words is "two billion, eight hundred eighty-five million, eighty-two thousand, six hundred sixty-one".

Divisors: 1 29 613 17777 162293 4706497 99485609 2885082661