Search a number
-
+
13124412444531 = 317257341420481
BaseRepresentation
bin1011111011111100001111…
…1100010000111101110011
31201110200101212110112202110
42332333003330100331303
53210012244041211111
643525134415020403
72523131114052513
oct276770374207563
951420355415673
1013124412444531
114200039743793
12157b72320a703
1374281c071bbb
143353213a5843
1517b5e1bd35a6
hexbefc3f10f73

13124412444531 has 8 divisors (see below), whose sum is σ = 18528582274704. Its totient is φ = 8234925455360.

The previous prime is 13124412444461. The next prime is 13124412444551. The reversal of 13124412444531 is 13544421442131.

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 13124412444531 - 222 = 13124408250227 is a prime.

It is a super-2 number, since 2×131244124445312 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13124412444531.

It is not an unprimeable number, because it can be changed into a prime (13124412444551) 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, 128670710190 + ... + 128670710291.

It is an arithmetic number, because the mean of its divisors is an integer number (2316072784338).

Almost surely, 213124412444531 is an apocalyptic number.

13124412444531 is a deficient number, since it is larger than the sum of its proper divisors (5404169830173).

13124412444531 is a wasteful number, since it uses less digits than its factorization.

13124412444531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257341420501.

The product of its digits is 184320, while the sum is 39.

Adding to 13124412444531 its reverse (13544421442131), we get a palindrome (26668833886662).

The spelling of 13124412444531 in words is "thirteen trillion, one hundred twenty-four billion, four hundred twelve million, four hundred forty-four thousand, five hundred thirty-one".

Divisors: 1 3 17 51 257341420481 772024261443 4374804148177 13124412444531