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13355131051 = 86991535249
BaseRepresentation
bin11000111000000011…
…10010000010101011
31021110202000221200101
430130001302002223
5204322403143201
610045114450231
7651644512063
oct143401620253
937422027611
1013355131051
115733694699
122708733977
13134ab33512
149099b03a3
15532700d01
hex31c0720ab

13355131051 has 4 divisors (see below), whose sum is σ = 13356675000. Its totient is φ = 13353587104.

The previous prime is 13355131021. The next prime is 13355131081. The reversal of 13355131051 is 15013155331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15013155331 = 73181205151.

It is an interprime number because it is at equal distance from previous prime (13355131021) and next prime (13355131081).

It is a cyclic number.

It is not a de Polignac number, because 13355131051 - 29 = 13355130539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13355131021) 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, 758926 + ... + 776323.

It is an arithmetic number, because the mean of its divisors is an integer number (3339168750).

Almost surely, 213355131051 is an apocalyptic number.

13355131051 is a deficient number, since it is larger than the sum of its proper divisors (1543949).

13355131051 is an equidigital number, since it uses as much as digits as its factorization.

13355131051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543948.

The product of its (nonzero) digits is 3375, while the sum is 28.

Adding to 13355131051 its reverse (15013155331), we get a palindrome (28368286382).

The spelling of 13355131051 in words is "thirteen billion, three hundred fifty-five million, one hundred thirty-one thousand, fifty-one".

Divisors: 1 8699 1535249 13355131051