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10111099999 = 7111310100999
BaseRepresentation
bin10010110101010101…
…10010010001011111
3222002122211002200011
421122222302101133
5131201420144444
64351151544051
7505363634440
oct113252622137
928078732604
1010111099999
1143194a80a0
121b6222b027
13c51a19410
146bcc032c7
153e2a06734
hex25aab245f

10111099999 has 16 divisors (see below), whose sum is σ = 13575744000. Its totient is φ = 7272718560.

The previous prime is 10111099997. The next prime is 10111100029. The reversal of 10111099999 is 99999011101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10111099999 - 21 = 10111099997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111099991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5049499 + ... + 5051500.

It is an arithmetic number, because the mean of its divisors is an integer number (848484000).

Almost surely, 210111099999 is an apocalyptic number.

10111099999 is a deficient number, since it is larger than the sum of its proper divisors (3464644001).

10111099999 is a wasteful number, since it uses less digits than its factorization.

10111099999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101030.

The product of its (nonzero) digits is 59049, while the sum is 49.

The spelling of 10111099999 in words is "ten billion, one hundred eleven million, ninety-nine thousand, nine hundred ninety-nine".

Divisors: 1 7 11 13 77 91 143 1001 10100999 70706993 111110989 131312987 777776923 919190909 1444442857 10111099999