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13531102111 = 171941891957
BaseRepresentation
bin11001001101000010…
…00011101110011111
31021221000011012121001
430212201003232133
5210202430231421
610114402251131
7656212320202
oct144641035637
937830135531
1013531102111
115813a5531a
122757656aa7
1313784265c7
149250d9939
15542db0691
hex326843b9f

13531102111 has 8 divisors (see below), whose sum is σ = 15081104880. Its totient is φ = 12064883328.

The previous prime is 13531102087. The next prime is 13531102127. The reversal of 13531102111 is 11120113531.

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

It is a cyclic number.

It is not a de Polignac number, because 13531102111 - 29 = 13531101599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531108111) 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, 20945656 + ... + 20946301.

It is an arithmetic number, because the mean of its divisors is an integer number (1885138110).

Almost surely, 213531102111 is an apocalyptic number.

13531102111 is a deficient number, since it is larger than the sum of its proper divisors (1550002769).

13531102111 is a wasteful number, since it uses less digits than its factorization.

13531102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41891993.

The product of its (nonzero) digits is 90, while the sum is 19.

Adding to 13531102111 its reverse (11120113531), we get a palindrome (24651215642).

The spelling of 13531102111 in words is "thirteen billion, five hundred thirty-one million, one hundred two thousand, one hundred eleven".

Divisors: 1 17 19 323 41891957 712163269 795947183 13531102111