Base | Representation |
---|---|
bin | 1000110100110… |
… | …00110011101101 |
3 | 12011021220212220 |
4 | 10122120303231 |
5 | 122422314341 |
6 | 11202345553 |
7 | 1556132613 |
oct | 432306355 |
9 | 164256786 |
10 | 74026221 |
11 | 38870aa5 |
12 | 2095b2b9 |
13 | 1244b2c9 |
14 | 9b8d6b3 |
15 | 6773a66 |
hex | 4698ced |
74026221 has 4 divisors (see below), whose sum is σ = 98701632. Its totient is φ = 49350812.
The previous prime is 74026219. The next prime is 74026243. The reversal of 74026221 is 12262047.
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 a cyclic number.
It is not a de Polignac number, because 74026221 - 21 = 74026219 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 74026191 and 74026200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (74026201) 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, 12337701 + ... + 12337706.
It is an arithmetic number, because the mean of its divisors is an integer number (24675408).
Almost surely, 274026221 is an apocalyptic number.
It is an amenable number.
74026221 is a deficient number, since it is larger than the sum of its proper divisors (24675411).
74026221 is a wasteful number, since it uses less digits than its factorization.
74026221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24675410.
The product of its (nonzero) digits is 1344, while the sum is 24.
The square root of 74026221 is about 8603.8491967258. The cubic root of 74026221 is about 419.8832271738.
Adding to 74026221 its reverse (12262047), we get a palindrome (86288268).
It can be divided in two parts, 74026 and 221, that added together give a palindrome (74247).
The spelling of 74026221 in words is "seventy-four million, twenty-six thousand, two hundred twenty-one".
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