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13892477441 = 105131321457
BaseRepresentation
bin11001111000000111…
…00110001000000001
31022212012010222100112
430330003212020001
5211422433234231
610214312001105
71001161052453
oct147403461001
938765128315
1013892477441
115989a39a17
122838690195
13140526336b
1495b0c82d3
1556499492b
hex33c0e6201

13892477441 has 4 divisors (see below), whose sum is σ = 13893809412. Its totient is φ = 13891145472.

The previous prime is 13892477429. The next prime is 13892477447. The reversal of 13892477441 is 14477429831.

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 4186090000 + 9706387441 = 64700^2 + 98521^2 .

It is a cyclic number.

It is not a de Polignac number, because 13892477441 - 218 = 13892215297 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 13892477441.

It is not an unprimeable number, because it can be changed into a prime (13892477447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650216 + ... + 671241.

It is an arithmetic number, because the mean of its divisors is an integer number (3473452353).

Almost surely, 213892477441 is an apocalyptic number.

It is an amenable number.

13892477441 is a deficient number, since it is larger than the sum of its proper divisors (1331971).

13892477441 is a wasteful number, since it uses less digits than its factorization.

13892477441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331970.

The product of its digits is 1354752, while the sum is 50.

The spelling of 13892477441 in words is "thirteen billion, eight hundred ninety-two million, four hundred seventy-seven thousand, four hundred forty-one".

Divisors: 1 10513 1321457 13892477441