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441430405 = 5137978521
BaseRepresentation
bin11010010011111…
…011000110000101
31010202121222200021
4122103323012011
51401001233110
6111445215141
713640045053
oct3223730605
91122558607
10441430405
112071a3219
12103a014b1
13705b9230
14428ab1d3
1528b492da
hex1a4fb185

441430405 has 16 divisors (see below), whose sum is σ = 571246704. Its totient is φ = 325532160.

The previous prime is 441430399. The next prime is 441430427. The reversal of 441430405 is 504034144.

It can be written as a sum of positive squares in 8 ways, for example, as 34117281 + 407313124 = 5841^2 + 20182^2 .

It is not a de Polignac number, because 441430405 - 23 = 441430397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 441430405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47545 + ... + 56065.

It is an arithmetic number, because the mean of its divisors is an integer number (35702919).

Almost surely, 2441430405 is an apocalyptic number.

It is an amenable number.

441430405 is a deficient number, since it is larger than the sum of its proper divisors (129816299).

441430405 is a wasteful number, since it uses less digits than its factorization.

441430405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9336.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 441430405 is about 21010.2452389305. The cubic root of 441430405 is about 761.4138070149.

Adding to 441430405 its reverse (504034144), we get a palindrome (945464549).

The spelling of 441430405 in words is "four hundred forty-one million, four hundred thirty thousand, four hundred five".

Divisors: 1 5 13 65 797 3985 8521 10361 42605 51805 110773 553865 6791237 33956185 88286081 441430405