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15445011041 = 109141697349
BaseRepresentation
bin11100110001001100…
…00010101001100001
31110212101111212001222
432120212002221201
5223112410323131
611032332104425
71054512266465
oct163046025141
943771455058
1015445011041
116606340439
122bb0605115
1315c1ab9cb5
14a673844a5
15605e1987b
hex398982a61

15445011041 has 4 divisors (see below), whose sum is σ = 15586708500. Its totient is φ = 15303313584.

The previous prime is 15445011031. The next prime is 15445011097. The reversal of 15445011041 is 14011054451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7464268816 + 7980742225 = 86396^2 + 89335^2 .

It is a cyclic number.

It is not a de Polignac number, because 15445011041 - 214 = 15444994657 is a prime.

It is a super-2 number, since 2×154450110412 (a number of 21 digits) contains 22 as substring.

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 15445011041.

It is not an unprimeable number, because it can be changed into a prime (15445011031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70848566 + ... + 70848783.

It is an arithmetic number, because the mean of its divisors is an integer number (3896677125).

Almost surely, 215445011041 is an apocalyptic number.

It is an amenable number.

15445011041 is a deficient number, since it is larger than the sum of its proper divisors (141697459).

15445011041 is a wasteful number, since it uses less digits than its factorization.

15445011041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141697458.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 15445011041 its reverse (14011054451), we get a palindrome (29456065492).

The spelling of 15445011041 in words is "fifteen billion, four hundred forty-five million, eleven thousand, forty-one".

Divisors: 1 109 141697349 15445011041