Search a number
-
+
2873045905749 = 32615233234801
BaseRepresentation
bin101001110011101110111…
…000010111000101010101
3101011122211111202002000100
4221303232320113011111
5334032444222440444
610035505320404313
7414366520155315
oct51635670270525
911148744662010
102873045905749
11a084a7571728
123a4995316699
1317ac089c3586
149d0b0183445
154eb03ee0e69
hex29ceee17155

2873045905749 has 12 divisors (see below), whose sum is σ = 4217987250412. Its totient is φ = 1883964528000.

The previous prime is 2873045905739. The next prime is 2873045905799. The reversal of 2873045905749 is 9475095403782.

2873045905749 is a `hidden beast` number, since 2 + 8 + 7 + 3 + 0 + 4 + 59 + 0 + 574 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1679965938225 + 1193079967524 = 1296135^2 + 1092282^2 .

It is not a de Polignac number, because 2873045905749 - 29 = 2873045905237 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 (2873045905739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2616616852 + ... + 2616617949.

Almost surely, 22873045905749 is an apocalyptic number.

It is an amenable number.

2873045905749 is a deficient number, since it is larger than the sum of its proper divisors (1344941344663).

2873045905749 is a wasteful number, since it uses less digits than its factorization.

2873045905749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5233234868 (or 5233234865 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 63.

The spelling of 2873045905749 in words is "two trillion, eight hundred seventy-three billion, forty-five million, nine hundred five thousand, seven hundred forty-nine".

Divisors: 1 3 9 61 183 549 5233234801 15699704403 47099113209 319227322861 957681968583 2873045905749