Search a number
-
+
2113788712 = 23771531637
BaseRepresentation
bin111110111111101…
…1101101100101000
312110022110120222211
41331333131230220
513312112214322
6545425454504
7103244623210
oct17577355450
95408416884
102113788712
119951a6822
124abaa1434
13278c08069
14160a39240
15c588cb77
hex7dfddb28

2113788712 has 32 divisors (see below), whose sum is σ = 4593352320. Its totient is φ = 893148480.

The previous prime is 2113788709. The next prime is 2113788737. The reversal of 2113788712 is 2178873112.

It is a super-3 number, since 3×21137887123 (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261843 + ... + 269794.

It is an arithmetic number, because the mean of its divisors is an integer number (143542260).

Almost surely, 22113788712 is an apocalyptic number.

It is an amenable number.

2113788712 is an abundant number, since it is smaller than the sum of its proper divisors (2479563608).

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

2113788712 is a wasteful number, since it uses less digits than its factorization.

2113788712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531721 (or 531717 counting only the distinct ones).

The product of its digits is 37632, while the sum is 40.

The square root of 2113788712 is about 45975.9579780563. The cubic root of 2113788712 is about 1283.3758365564.

The spelling of 2113788712 in words is "two billion, one hundred thirteen million, seven hundred eighty-eight thousand, seven hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 71 142 284 497 568 994 1988 3976 531637 1063274 2126548 3721459 4253096 7442918 14885836 29771672 37746227 75492454 150984908 264223589 301969816 528447178 1056894356 2113788712