Base | Representation |
---|---|
bin | 110001100010101000… |
… | …1000101110011101000 |
3 | 101011121102022100201001 |
4 | 1203011101011303220 |
5 | 3220341013310023 |
6 | 120512505204344 |
7 | 10454261636440 |
oct | 1430521056350 |
9 | 334542270631 |
10 | 106388806888 |
11 | 411347872a1 |
12 | 187514906b4 |
13 | a0562cb150 |
14 | 521375d120 |
15 | 2b7a0746ad |
hex | 18c5445ce8 |
106388806888 has 32 divisors (see below), whose sum is σ = 245512632960. Its totient is φ = 42087879360.
The previous prime is 106388806871. The next prime is 106388806889. The reversal of 106388806888 is 888608883601.
It is a super-2 number, since 2×1063888068882 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (106388806889) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73068508 + ... + 73069963.
It is an arithmetic number, because the mean of its divisors is an integer number (7672269780).
Almost surely, 2106388806888 is an apocalyptic number.
It is an amenable number.
106388806888 is an abundant number, since it is smaller than the sum of its proper divisors (139123826072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
106388806888 is a wasteful number, since it uses less digits than its factorization.
106388806888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 146138497 (or 146138493 counting only the distinct ones).
The product of its (nonzero) digits is 28311552, while the sum is 64.
It can be divided in two parts, 106388 and 806888, that added together give a triangular number (913276 = T1351).
The spelling of 106388806888 in words is "one hundred six billion, three hundred eighty-eight million, eight hundred six thousand, eight hundred eighty-eight".
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