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1441520069 = 11211913389
BaseRepresentation
bin101010111101011…
…1101100111000101
310201110110210210012
41111322331213011
510423012120234
6355012440005
750502501263
oct12572754705
93643423705
101441520069
1167a778400
12342919005
1319c858172
14d963d433
15868470ce
hex55ebd9c5

1441520069 has 6 divisors (see below), whose sum is σ = 1584480870. Its totient is φ = 1310472680.

The previous prime is 1441520053. The next prime is 1441520077. The reversal of 1441520069 is 9600251441.

It can be written as a sum of positive squares in only one way, i.e., 1047299044 + 394221025 = 32362^2 + 19855^2 .

It is not a de Polignac number, because 1441520069 - 24 = 1441520053 is a prime.

It is a super-2 number, since 2×14415200692 = 4155960218659529522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441520039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5956574 + ... + 5956815.

It is an arithmetic number, because the mean of its divisors is an integer number (264080145).

Almost surely, 21441520069 is an apocalyptic number.

It is an amenable number.

1441520069 is a deficient number, since it is larger than the sum of its proper divisors (142960801).

1441520069 is a wasteful number, since it uses less digits than its factorization.

1441520069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11913411 (or 11913400 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1441520069 is about 37967.3553068949. The cubic root of 1441520069 is about 1129.6404392863.

The spelling of 1441520069 in words is "one billion, four hundred forty-one million, five hundred twenty thousand, sixty-nine".

Divisors: 1 11 121 11913389 131047279 1441520069