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344843420525 = 5217777762373
BaseRepresentation
bin1010000010010100100…
…01010000001101101101
31012222002201201211010222
411001022101100031231
521122214403424100
6422230251141125
733625353465602
oct5011221201555
91188081654128
10344843420525
1112327a13691a
12569bb4447a5
1326698479176
1412994a926a9
158e844bd485
hex504a45036d

344843420525 has 12 divisors (see below), whose sum is σ = 427846530132. Its totient is φ = 275719453440.

The previous prime is 344843420503. The next prime is 344843420527. The reversal of 344843420525 is 525024348443.

It can be written as a sum of positive squares in 6 ways, for example, as 81331624969 + 263511795556 = 285187^2 + 513334^2 .

It is not a de Polignac number, because 344843420525 - 214 = 344843404141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344843420527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3836762 + ... + 3925611.

It is an arithmetic number, because the mean of its divisors is an integer number (35653877511).

Almost surely, 2344843420525 is an apocalyptic number.

It is an amenable number.

344843420525 is a deficient number, since it is larger than the sum of its proper divisors (83003109607).

344843420525 is a wasteful number, since it uses less digits than its factorization.

344843420525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7764160 (or 7764155 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 44.

Adding to 344843420525 its reverse (525024348443), we get a palindrome (869867768968).

The spelling of 344843420525 in words is "three hundred forty-four billion, eight hundred forty-three million, four hundred twenty thousand, five hundred twenty-five".

Divisors: 1 5 25 1777 8885 44425 7762373 38811865 194059325 13793736821 68968684105 344843420525