Search a number
-
+
11208432481 = 19589917499
BaseRepresentation
bin10100111000001001…
…10001101101100001
31001221010122100211221
422130010301231201
5140423324314411
65052111335041
7544520050501
oct123404615541
931833570757
1011208432481
114831960244
122209821481
131098174b8c
14784849a01
15459012071
hex29c131b61

11208432481 has 4 divisors (see below), whose sum is σ = 11798350000. Its totient is φ = 10618514964.

The previous prime is 11208432461. The next prime is 11208432493. The reversal of 11208432481 is 18423480211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11208432481 - 25 = 11208432449 is a prime.

It is a super-2 number, since 2×112084324812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11208432451) 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, 294958731 + ... + 294958768.

It is an arithmetic number, because the mean of its divisors is an integer number (2949587500).

Almost surely, 211208432481 is an apocalyptic number.

It is an amenable number.

11208432481 is a deficient number, since it is larger than the sum of its proper divisors (589917519).

11208432481 is an equidigital number, since it uses as much as digits as its factorization.

11208432481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589917518.

The product of its (nonzero) digits is 12288, while the sum is 34.

The spelling of 11208432481 in words is "eleven billion, two hundred eight million, four hundred thirty-two thousand, four hundred eighty-one".

Divisors: 1 19 589917499 11208432481