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13531151441 = 29928350263
BaseRepresentation
bin11001001101000010…
…01111110001010001
31021221000020201021002
430212201033301101
5210202433321231
610114403311345
7656212614053
oct144641176121
937830221232
1013531151441
115813a89395
12275767b555
131378442bb2
1492510d8d3
15542dc00cb
hex32684fc51

13531151441 has 8 divisors (see below), whose sum is σ = 13999529280. Its totient is φ = 13062892752.

The previous prime is 13531151429. The next prime is 13531151471. The reversal of 13531151441 is 14415113531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13531151441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13531151471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244076 + ... + 294338.

It is an arithmetic number, because the mean of its divisors is an integer number (1749941160).

Almost surely, 213531151441 is an apocalyptic number.

It is an amenable number.

13531151441 is a deficient number, since it is larger than the sum of its proper divisors (468377839).

13531151441 is an equidigital number, since it uses as much as digits as its factorization.

13531151441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59575.

The product of its digits is 3600, while the sum is 29.

Adding to 13531151441 its reverse (14415113531), we get a palindrome (27946264972).

The spelling of 13531151441 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-one thousand, four hundred forty-one".

Divisors: 1 29 9283 50263 269207 1457627 466591429 13531151441