Base | Representation |
---|---|
bin | 1100100010111… |
… | …11001010101111 |
3 | 21100001010022010 |
4 | 12101133022233 |
5 | 203420404112 |
6 | 14235452303 |
7 | 2415405516 |
oct | 621371257 |
9 | 240033263 |
10 | 105247407 |
11 | 54455a31 |
12 | 2b2b7093 |
13 | 18a60095 |
14 | dd9967d |
15 | 938e63c |
hex | 645f2af |
105247407 has 4 divisors (see below), whose sum is σ = 140329880. Its totient is φ = 70164936.
The previous prime is 105247399. The next prime is 105247421. The reversal of 105247407 is 704742501.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 105247407 - 23 = 105247399 is a prime.
It is a super-2 number, since 2×1052474072 = 22154033360447298, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (105247477) 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, 17541232 + ... + 17541237.
It is an arithmetic number, because the mean of its divisors is an integer number (35082470).
Almost surely, 2105247407 is an apocalyptic number.
105247407 is a deficient number, since it is larger than the sum of its proper divisors (35082473).
105247407 is an equidigital number, since it uses as much as digits as its factorization.
105247407 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35082472.
The product of its (nonzero) digits is 7840, while the sum is 30.
The square root of 105247407 is about 10259.0158884759. The cubic root of 105247407 is about 472.1396440568.
Adding to 105247407 its reverse (704742501), we get a palindrome (809989908).
The spelling of 105247407 in words is "one hundred five million, two hundred forty-seven thousand, four hundred seven".
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