Search a number
-
+
1520505041 = 111729327751
BaseRepresentation
bin101101010100001…
…0001000011010001
310220222002122210112
41122220101003101
511103222130131
6410513411105
752452036206
oct13250210321
93828078715
101520505041
11710315a40
12365269a95
131b3021533
14105d1dcad
158d74a02b
hex5aa110d1

1520505041 has 16 divisors (see below), whose sum is σ = 1762363008. Its totient is φ = 1296480000.

The previous prime is 1520505023. The next prime is 1520505043. The reversal of 1520505041 is 1405050251.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1520505041 - 218 = 1520242897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1520504998 and 1520505016.

It is not an unprimeable number, because it can be changed into a prime (1520505043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40916 + ... + 68666.

It is an arithmetic number, because the mean of its divisors is an integer number (110147688).

Almost surely, 21520505041 is an apocalyptic number.

1520505041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1520505041 is a deficient number, since it is larger than the sum of its proper divisors (241857967).

1520505041 is a wasteful number, since it uses less digits than its factorization.

1520505041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28072.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1520505041 is about 38993.6538554673. The cubic root of 1520505041 is about 1149.9067450530.

Adding to 1520505041 its reverse (1405050251), we get a palindrome (2925555292).

The spelling of 1520505041 in words is "one billion, five hundred twenty million, five hundred five thousand, forty-one".

Divisors: 1 11 17 187 293 3223 4981 27751 54791 305261 471767 5189437 8131043 89441473 138227731 1520505041