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13455110231 = 52249257519
BaseRepresentation
bin11001000011111110…
…01011000001010111
31021201201011102022222
430201333023001113
5210024002011411
610103045412555
7654300356423
oct144177130127
937651142288
1013455110231
115785071512
12273610a15b
13136576a6b4
14918d97b83
1553b39e4db
hex321fcb057

13455110231 has 4 divisors (see below), whose sum is σ = 13455420000. Its totient is φ = 13454800464.

The previous prime is 13455110219. The next prime is 13455110237. The reversal of 13455110231 is 13201155431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13455110231 - 218 = 13454848087 is a prime.

It is a super-2 number, since 2×134551102312 (a number of 21 digits) contains 22 as substring.

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 13455110231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13455110237) 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, 76511 + ... + 181008.

It is an arithmetic number, because the mean of its divisors is an integer number (3363855000).

Almost surely, 213455110231 is an apocalyptic number.

13455110231 is a deficient number, since it is larger than the sum of its proper divisors (309769).

13455110231 is an equidigital number, since it uses as much as digits as its factorization.

13455110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309768.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 13455110231 its reverse (13201155431), we get a palindrome (26656265662).

The spelling of 13455110231 in words is "thirteen billion, four hundred fifty-five million, one hundred ten thousand, two hundred thirty-one".

Divisors: 1 52249 257519 13455110231