Base | Representation |
---|---|
bin | 101011000011001… |
… | …0101101110011110 |
3 | 10201200002022211000 |
4 | 1112012111232132 |
5 | 10424243034210 |
6 | 355200411130 |
7 | 50540032230 |
oct | 12606255636 |
9 | 3650068730 |
10 | 1444502430 |
11 | 681425068 |
12 | 343916aa6 |
13 | 1a0360787 |
14 | d9bb8250 |
15 | 86c35ac0 |
hex | 56195b9e |
1444502430 has 128 divisors (see below), whose sum is σ = 4418012160. Its totient is φ = 328993920.
The previous prime is 1444502351. The next prime is 1444502431. The reversal of 1444502430 is 342054441.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 1444502394 and 1444502403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1444502431) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 597925 + ... + 600335.
It is an arithmetic number, because the mean of its divisors is an integer number (34515720).
Almost surely, 21444502430 is an apocalyptic number.
1444502430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1444502430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2209006080).
1444502430 is an abundant number, since it is smaller than the sum of its proper divisors (2973509730).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1444502430 is a wasteful number, since it uses less digits than its factorization.
1444502430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2751 (or 2745 counting only the distinct ones).
The product of its (nonzero) digits is 7680, while the sum is 27.
The square root of 1444502430 is about 38006.6103460964. The cubic root of 1444502430 is about 1130.4189403879.
Adding to 1444502430 its reverse (342054441), we get a palindrome (1786556871).
The spelling of 1444502430 in words is "one billion, four hundred forty-four million, five hundred two thousand, four hundred thirty".
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