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2211490849 = 171011287997
BaseRepresentation
bin1000001111010000…
…1010110000100001
312201010022101010111
42003310022300201
514012120201344
61003235531321
7105542235121
oct20364126041
95633271114
102211490849
11a35368897
12518759b41
13293225989
1416d9ccc81
15ce23b834
hex83d0ac21

2211490849 has 8 divisors (see below), whose sum is σ = 2364764328. Its totient is φ = 2060793600.

The previous prime is 2211490847. The next prime is 2211490861. The reversal of 2211490849 is 9480941122.

It can be written as a sum of positive squares in 4 ways, for example, as 1831240849 + 380250000 = 42793^2 + 19500^2 .

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 2211490849 - 21 = 2211490847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2211490847) 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, 642282 + ... + 645715.

It is an arithmetic number, because the mean of its divisors is an integer number (295595541).

Almost surely, 22211490849 is an apocalyptic number.

It is an amenable number.

2211490849 is a deficient number, since it is larger than the sum of its proper divisors (153273479).

2211490849 is a wasteful number, since it uses less digits than its factorization.

2211490849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288115.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 2211490849 is about 47026.4909279865. The cubic root of 2211490849 is about 1302.8518946593.

The spelling of 2211490849 in words is "two billion, two hundred eleven million, four hundred ninety thousand, eight hundred forty-nine".

Divisors: 1 17 101 1717 1287997 21895949 130087697 2211490849