Search a number
-
+
11887204806 = 2322973311951
BaseRepresentation
bin10110001001000100…
…00101100111000110
31010200102212120102200
423010202011213012
5143321111023211
65243320015330
7600401400531
oct130442054706
933612776380
1011887204806
115050020a04
122379001546
1311759910c9
1480aa59a18
154988deb56
hex2c48859c6

11887204806 has 48 divisors (see below), whose sum is σ = 27008804160. Its totient is φ = 3773347200.

The previous prime is 11887204759. The next prime is 11887204829. The reversal of 11887204806 is 60840278811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117870 + ... + 194081.

It is an arithmetic number, because the mean of its divisors is an integer number (562683420).

Almost surely, 211887204806 is an apocalyptic number.

11887204806 is an abundant number, since it is smaller than the sum of its proper divisors (15121599354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11887204806 is a wasteful number, since it uses less digits than its factorization.

11887204806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312061 (or 312058 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The spelling of 11887204806 in words is "eleven billion, eight hundred eighty-seven million, two hundred four thousand, eight hundred six".

Divisors: 1 2 3 6 9 18 29 58 73 87 146 174 219 261 438 522 657 1314 2117 4234 6351 12702 19053 38106 311951 623902 935853 1871706 2807559 5615118 9046579 18093158 22772423 27139737 45544846 54279474 68317269 81419211 136634538 162838422 204951807 409903614 660400267 1320800534 1981200801 3962401602 5943602403 11887204806