Base | Representation |
---|---|
bin | 1100010001101… |
… | …11110001101011 |
3 | 21011210101012222 |
4 | 12020313301223 |
5 | 202331121112 |
6 | 14115224255 |
7 | 2360251130 |
oct | 610676153 |
9 | 234711188 |
10 | 102988907 |
11 | 531530aa |
12 | 2a5a808b |
13 | 1844c0a8 |
14 | d96c587 |
15 | 9095372 |
hex | 6237c6b |
102988907 has 12 divisors (see below), whose sum is σ = 125034960. Its totient is φ = 83081856.
The previous prime is 102988901. The next prime is 102988937. The reversal of 102988907 is 709889201.
It is not a de Polignac number, because 102988907 - 210 = 102987883 is a prime.
It is a super-3 number, since 3×1029889073 (a number of 25 digits) contains 333 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (102988901) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23432 + ... + 27477.
It is an arithmetic number, because the mean of its divisors is an integer number (10419580).
Almost surely, 2102988907 is an apocalyptic number.
102988907 is a gapful number since it is divisible by the number (17) formed by its first and last digit.
102988907 is a deficient number, since it is larger than the sum of its proper divisors (22046053).
102988907 is an equidigital number, since it uses as much as digits as its factorization.
102988907 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50950 (or 50933 counting only the distinct ones).
The product of its (nonzero) digits is 72576, while the sum is 44.
The square root of 102988907 is about 10148.3450374926. The cubic root of 102988907 is about 468.7379860150.
The spelling of 102988907 in words is "one hundred two million, nine hundred eighty-eight thousand, nine hundred seven".
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