Search a number
-
+
10111109988 = 2237731648909
BaseRepresentation
bin10010110101010101…
…10100101101100100
3222002122211121101010
421122222310231210
5131201421004423
64351152102220
7505364005530
oct113252645544
928078747333
1010111109988
114319504651
121b62234970
13c51a20b25
146bcc06bc0
153e2a09693
hex25aab4b64

10111109988 has 48 divisors (see below), whose sum is σ = 27332332160. Its totient is φ = 2849313024.

The previous prime is 10111109969. The next prime is 10111109989. The reversal of 10111109988 is 88990111101.

10111109988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (10111109989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 818323 + ... + 830586.

Almost surely, 210111109988 is an apocalyptic number.

It is an amenable number.

10111109988 is an abundant number, since it is smaller than the sum of its proper divisors (17221222172).

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

10111109988 is a wasteful number, since it uses less digits than its factorization.

10111109988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648996 (or 1648994 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 39.

The spelling of 10111109988 in words is "ten billion, one hundred eleven million, one hundred nine thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 73 84 146 219 292 438 511 876 1022 1533 2044 3066 6132 1648909 3297818 4946727 6595636 9893454 11542363 19786908 23084726 34627089 46169452 69254178 120370357 138508356 240740714 361111071 481481428 722222142 842592499 1444444284 1685184998 2527777497 3370369996 5055554994 10111109988