Base | Representation |
---|---|
bin | 100110010011… |
… | …101101100111 |
3 | 200220012022220 |
4 | 212103231213 |
5 | 10032322330 |
6 | 555123423 |
7 | 151233411 |
oct | 46235547 |
9 | 20805286 |
10 | 10042215 |
11 | 5739957 |
12 | 3443573 |
13 | 2107b51 |
14 | 14959b1 |
15 | d35710 |
hex | 993b67 |
10042215 has 8 divisors (see below), whose sum is σ = 16067568. Its totient is φ = 5355840.
The previous prime is 10042199. The next prime is 10042289. The reversal of 10042215 is 51224001.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 10042215 - 24 = 10042199 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 669481 = 10042215 / (1 + 0 + 0 + 4 + 2 + 2 + 1 + 5).
It is a junction number, because it is equal to n+sod(n) for n = 10042194 and 10042203.
It is a congruent 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, 334726 + ... + 334755.
It is an arithmetic number, because the mean of its divisors is an integer number (2008446).
Almost surely, 210042215 is an apocalyptic number.
10042215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
10042215 is a deficient number, since it is larger than the sum of its proper divisors (6025353).
10042215 is an equidigital number, since it uses as much as digits as its factorization.
10042215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 669489.
The product of its (nonzero) digits is 80, while the sum is 15.
The square root of 10042215 is about 3168.9454081760. The cubic root of 10042215 is about 215.7462082655.
Adding to 10042215 its reverse (51224001), we get a palindrome (61266216).
The spelling of 10042215 in words is "ten million, forty-two thousand, two hundred fifteen".
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