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13531134145 = 519142432991
BaseRepresentation
bin11001001101000010…
…01011100011000001
31021221000012211112111
430212201023203001
5210202432243040
610114403055321
7656212512454
oct144641134301
937830184474
1013531134145
115813a773a1
122757671541
131378438069
1492510749b
15542db9dea
hex32684b8c1

13531134145 has 8 divisors (see below), whose sum is σ = 17091959040. Its totient is φ = 10255175280.

The previous prime is 13531134119. The next prime is 13531134167. The reversal of 13531134145 is 54143113531.

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

It is not a de Polignac number, because 13531134145 - 29 = 13531133633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71216401 + ... + 71216590.

It is an arithmetic number, because the mean of its divisors is an integer number (2136494880).

Almost surely, 213531134145 is an apocalyptic number.

It is an amenable number.

13531134145 is a deficient number, since it is larger than the sum of its proper divisors (3560824895).

13531134145 is a wasteful number, since it uses less digits than its factorization.

13531134145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142433015.

The product of its digits is 10800, while the sum is 31.

Adding to 13531134145 its reverse (54143113531), we get a palindrome (67674247676).

The spelling of 13531134145 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-four thousand, one hundred forty-five".

Divisors: 1 5 19 95 142432991 712164955 2706226829 13531134145