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104105144131 = 137759891563
BaseRepresentation
bin110000011110100100…
…1100110111101000011
3100221201021012021022221
41200331021212331003
53201201404103011
6115454130311511
710343552060512
oct1407511467503
9327637167287
10104105144131
11401727046aa
1218214728597
139a81156201
145078344679
152a9482d971
hex183d266f43

104105144131 has 4 divisors (see below), whose sum is σ = 104865035832. Its totient is φ = 103345252432.

The previous prime is 104105144123. The next prime is 104105144197. The reversal of 104105144131 is 131441501401.

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 104105144131 - 23 = 104105144123 is a prime.

It is a super-2 number, since 2×1041051441312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104105144096 and 104105144105.

It is not an unprimeable number, because it can be changed into a prime (104105144111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379945645 + ... + 379945918.

It is an arithmetic number, because the mean of its divisors is an integer number (26216258958).

Almost surely, 2104105144131 is an apocalyptic number.

104105144131 is a deficient number, since it is larger than the sum of its proper divisors (759891701).

104105144131 is an equidigital number, since it uses as much as digits as its factorization.

104105144131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759891700.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 104105144131 its reverse (131441501401), we get a palindrome (235546645532).

The spelling of 104105144131 in words is "one hundred four billion, one hundred five million, one hundred forty-four thousand, one hundred thirty-one".

Divisors: 1 137 759891563 104105144131