Search a number
-
+
2813895049 = 723122914221
BaseRepresentation
bin1010011110111000…
…1010000110001001
321021002211200100011
42213232022012021
521230324120144
61143115311521
7126505466440
oct24756120611
97232750304
102813895049
111214408aa9
1266644b5a1
1335ac83974
141c99ddd57
15117081a34
hexa7b8a189

2813895049 has 16 divisors (see below), whose sum is σ = 3358667520. Its totient is φ = 2305005120.

The previous prime is 2813895043. The next prime is 2813895061. The reversal of 2813895049 is 9405983182.

It is a cyclic number.

It is not a de Polignac number, because 2813895049 - 213 = 2813886857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2813894993 and 2813895011.

It is not an unprimeable number, because it can be changed into a prime (2813895043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190759 + ... + 204979.

It is an arithmetic number, because the mean of its divisors is an integer number (209916720).

Almost surely, 22813895049 is an apocalyptic number.

It is an amenable number.

2813895049 is a deficient number, since it is larger than the sum of its proper divisors (544772471).

2813895049 is a wasteful number, since it uses less digits than its factorization.

2813895049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15480.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 2813895049 is about 53046.1596065163. The cubic root of 2813895049 is about 1411.7873898771.

The spelling of 2813895049 in words is "two billion, eight hundred thirteen million, eight hundred ninety-five thousand, forty-nine".

Divisors: 1 7 23 161 1229 8603 14221 28267 99547 197869 327083 2289581 17477609 122343263 401985007 2813895049