Base | Representation |
---|---|
bin | 1100010111010… |
… | …10101000010101 |
3 | 21020011121010210 |
4 | 12023222220111 |
5 | 203023041433 |
6 | 14143040033 |
7 | 2366422011 |
oct | 613525025 |
9 | 236147123 |
10 | 103721493 |
11 | 53603547 |
12 | 2a8a0019 |
13 | 18647685 |
14 | dabd541 |
15 | 918c463 |
hex | 62eaa15 |
103721493 has 4 divisors (see below), whose sum is σ = 138295328. Its totient is φ = 69147660.
The previous prime is 103721491. The next prime is 103721591. The reversal of 103721493 is 394127301.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 103721493 - 21 = 103721491 is a prime.
It is a super-2 number, since 2×1037214932 = 21516296220298098, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 103721493.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103721491) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17286913 + ... + 17286918.
It is an arithmetic number, because the mean of its divisors is an integer number (34573832).
Almost surely, 2103721493 is an apocalyptic number.
It is an amenable number.
103721493 is a deficient number, since it is larger than the sum of its proper divisors (34573835).
103721493 is an equidigital number, since it uses as much as digits as its factorization.
103721493 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34573834.
The product of its (nonzero) digits is 4536, while the sum is 30.
The square root of 103721493 is about 10184.3749440012. The cubic root of 103721493 is about 469.8467781819.
Adding to 103721493 its reverse (394127301), we get a palindrome (497848794).
The spelling of 103721493 in words is "one hundred three million, seven hundred twenty-one thousand, four hundred ninety-three".
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