Search a number
-
+
20130034245 = 354132731763
BaseRepresentation
bin10010101111110101…
…111111001001000101
31220221220012200200220
4102233311333021011
5312211242043440
613125252254553
71311561316326
oct225765771105
956856180626
1020130034245
11859a974742
123a99611459
131b8a605b89
14d8d69444d
157cc3a48d0
hex4afd7f245

20130034245 has 16 divisors (see below), whose sum is σ = 32993618112. Its totient is φ = 10474163840.

The previous prime is 20130034241. The next prime is 20130034259. The reversal of 20130034245 is 54243003102.

It is not a de Polignac number, because 20130034245 - 22 = 20130034241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130034241) 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, 16365267 + ... + 16366496.

It is an arithmetic number, because the mean of its divisors is an integer number (2062101132).

Almost surely, 220130034245 is an apocalyptic number.

It is an amenable number.

20130034245 is a deficient number, since it is larger than the sum of its proper divisors (12863583867).

20130034245 is a wasteful number, since it uses less digits than its factorization.

20130034245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32731812.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20130034245 its reverse (54243003102), we get a palindrome (74373037347).

The spelling of 20130034245 in words is "twenty billion, one hundred thirty million, thirty-four thousand, two hundred forty-five".

Divisors: 1 3 5 15 41 123 205 615 32731763 98195289 163658815 490976445 1342002283 4026006849 6710011415 20130034245