Search a number
-
+
2889902297 = 157178910289
BaseRepresentation
bin1010110001000000…
…0110100011011001
321110101212020200102
42230100012203121
521404303333142
61154432345145
7131420523062
oct25420064331
97411766612
102889902297
111253302407
126879a51b5
13370946879
141d5b47569
1511da97532
hexac4068d9

2889902297 has 8 divisors (see below), whose sum is σ = 2910217800. Its totient is φ = 2869611264.

The previous prime is 2889902293. The next prime is 2889902363. The reversal of 2889902297 is 7922099882.

It can be written as a sum of positive squares in 4 ways, for example, as 1442556361 + 1447345936 = 37981^2 + 38044^2 .

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 2889902297 - 22 = 2889902293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2889902293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275729 + ... + 286017.

It is an arithmetic number, because the mean of its divisors is an integer number (363777225).

Almost surely, 22889902297 is an apocalyptic number.

It is an amenable number.

2889902297 is a deficient number, since it is larger than the sum of its proper divisors (20315503).

2889902297 is a wasteful number, since it uses less digits than its factorization.

2889902297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12235.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The square root of 2889902297 is about 53757.8114974931. The cubic root of 2889902297 is about 1424.3860775181.

The spelling of 2889902297 in words is "two billion, eight hundred eighty-nine million, nine hundred two thousand, two hundred ninety-seven".

Divisors: 1 157 1789 10289 280873 1615373 18407021 2889902297