Search a number
-
+
11212031445 = 35747468763
BaseRepresentation
bin10100111000100101…
…00000010111010101
31001221101102012200220
422130102200113111
5140430240001240
65052320424553
7544562460216
oct123422402725
931841365626
1011212031445
11483399919a
12220aa78159
131098b35044
1478510540d
154594c35d0
hex29c4a05d5

11212031445 has 8 divisors (see below), whose sum is σ = 17939250336. Its totient is φ = 5979750096.

The previous prime is 11212031353. The next prime is 11212031459. The reversal of 11212031445 is 54413021211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11212031445 - 28 = 11212031189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373734367 + ... + 373734396.

It is an arithmetic number, because the mean of its divisors is an integer number (2242406292).

Almost surely, 211212031445 is an apocalyptic number.

11212031445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11212031445 is a deficient number, since it is larger than the sum of its proper divisors (6727218891).

11212031445 is an equidigital number, since it uses as much as digits as its factorization.

11212031445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747468771.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 11212031445 its reverse (54413021211), we get a palindrome (65625052656).

The spelling of 11212031445 in words is "eleven billion, two hundred twelve million, thirty-one thousand, four hundred forty-five".

Divisors: 1 3 5 15 747468763 2242406289 3737343815 11212031445