Base | Representation |
---|---|
bin | 1011111100000… |
… | …00111101000011 |
3 | 20222102210020212 |
4 | 11332000331003 |
5 | 201114033130 |
6 | 13534224335 |
7 | 2324125565 |
oct | 576007503 |
9 | 228383225 |
10 | 100142915 |
11 | 51589944 |
12 | 296550ab |
13 | 17993882 |
14 | d42b335 |
15 | 8bd1e95 |
hex | 5f80f43 |
100142915 has 8 divisors (see below), whose sum is σ = 122966448. Its totient is φ = 78251040.
The previous prime is 100142899. The next prime is 100142963. The reversal of 100142915 is 519241001.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 100142915 - 24 = 100142899 is a prime.
It is a Duffinian number.
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, 232676 + ... + 233105.
It is an arithmetic number, because the mean of its divisors is an integer number (15370806).
Almost surely, 2100142915 is an apocalyptic number.
100142915 is a deficient number, since it is larger than the sum of its proper divisors (22823533).
100142915 is an equidigital number, since it uses as much as digits as its factorization.
100142915 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 465829.
The product of its (nonzero) digits is 360, while the sum is 23.
The square root of 100142915 is about 10007.1431987356. The cubic root of 100142915 is about 464.3798956642.
Adding to 100142915 its reverse (519241001), we get a palindrome (619383916).
The spelling of 100142915 in words is "one hundred million, one hundred forty-two thousand, nine hundred fifteen".
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