Search a number
-
+
2804921307 = 3217791092129
BaseRepresentation
bin1010011100101111…
…1011001111011011
321020110221202200100
42213023323033123
521221024440212
61142155110443
7126336303066
oct24713731733
97213852610
102804921307
11120a339991
12663442423
13359161266
141c87458dd
151163acbdc
hexa72fb3db

2804921307 has 48 divisors (see below), whose sum is σ = 4386096000. Its totient is φ = 1720922112.

The previous prime is 2804921297. The next prime is 2804921309. The reversal of 2804921307 is 7031294082.

It is not a de Polignac number, because 2804921307 - 28 = 2804921051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2804921309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1316419 + ... + 1318547.

It is an arithmetic number, because the mean of its divisors is an integer number (91377000).

Almost surely, 22804921307 is an apocalyptic number.

2804921307 is a deficient number, since it is larger than the sum of its proper divisors (1581174693).

2804921307 is a wasteful number, since it uses less digits than its factorization.

2804921307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2804921307 is about 52961.5077863159. The cubic root of 2804921307 is about 1410.2850231107.

The spelling of 2804921307 in words is "two billion, eight hundred four million, nine hundred twenty-one thousand, three hundred seven".

Divisors: 1 3 9 17 51 79 109 153 237 327 711 981 1343 1853 2129 4029 5559 6387 8611 12087 16677 19161 25833 36193 77499 108579 146387 168191 232061 325737 439161 504573 696183 1317483 1513719 2088549 2859247 3945037 8577741 11835111 18332819 25733223 35505333 54998457 164995371 311657923 934973769 2804921307