Base | Representation |
---|---|
bin | 11011101010000111111110 |
3 | 111122100201110 |
4 | 123222013332 |
5 | 3324003210 |
6 | 415222450 |
7 | 115425165 |
oct | 33520776 |
9 | 14570643 |
10 | 7250430 |
11 | 41023a0 |
12 | 2517a26 |
13 | 166b1c5 |
14 | d6a3dc |
15 | 983420 |
hex | 6ea1fe |
7250430 has 64 divisors (see below), whose sum is σ = 19243008. Its totient is φ = 1733760.
The previous prime is 7250429. The next prime is 7250491. The reversal of 7250430 is 340527.
It is a happy number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 7250397 and 7250406.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41824 + ... + 41996.
It is an arithmetic number, because the mean of its divisors is an integer number (300672).
Almost surely, 27250430 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 7250430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9621504).
7250430 is an abundant number, since it is smaller than the sum of its proper divisors (11992578).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7250430 is a wasteful number, since it uses less digits than its factorization.
7250430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 321.
The product of its (nonzero) digits is 840, while the sum is 21.
The square root of 7250430 is about 2692.6622513787. The cubic root of 7250430 is about 193.5476583395.
Adding to 7250430 its reverse (340527), we get a palindrome (7590957).
Subtracting from 7250430 its reverse (340527), we obtain a triangular number (6909903 = T3717).
The spelling of 7250430 in words is "seven million, two hundred fifty thousand, four hundred thirty".
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