Base | Representation |
---|---|
bin | 100110100111… |
… | …101011011101 |
3 | 201001100111212 |
4 | 212213223131 |
5 | 10042431442 |
6 | 1000554205 |
7 | 152024012 |
oct | 46475335 |
9 | 21040455 |
10 | 10123997 |
11 | 5795344 |
12 | 3482965 |
13 | 2136140 |
14 | 14b7709 |
15 | d4ea82 |
hex | 9a7add |
10123997 has 4 divisors (see below), whose sum is σ = 10902780. Its totient is φ = 9345216.
The previous prime is 10123969. The next prime is 10123999. The reversal of 10123997 is 79932101.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79932101 = 47 ⋅1700683.
It can be written as a sum of positive squares in 2 ways, for example, as 1207801 + 8916196 = 1099^2 + 2986^2 .
It is a cyclic number.
It is not a de Polignac number, because 10123997 - 214 = 10107613 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10123999) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389372 + ... + 389397.
It is an arithmetic number, because the mean of its divisors is an integer number (2725695).
Almost surely, 210123997 is an apocalyptic number.
It is an amenable number.
10123997 is a deficient number, since it is larger than the sum of its proper divisors (778783).
10123997 is an equidigital number, since it uses as much as digits as its factorization.
10123997 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 778782.
The product of its (nonzero) digits is 3402, while the sum is 32.
The square root of 10123997 is about 3181.8229051913. The cubic root of 10123997 is about 216.3302917235.
The spelling of 10123997 in words is "ten million, one hundred twenty-three thousand, nine hundred ninety-seven".
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