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11220402143 = 71745921187
BaseRepresentation
bin10100111001100100…
…11011111111011111
31001221222011111010202
422130302123333133
5140434410332033
65053220054115
7545023562456
oct123462337737
931858144122
1011220402143
114838696225
12221183433b
13109a7a6112
14786283b9d
1545a0c88e8
hex29cc9bfdf

11220402143 has 8 divisors (see below), whose sum is σ = 11380498560. Its totient is φ = 11060363160.

The previous prime is 11220402131. The next prime is 11220402173. The reversal of 11220402143 is 34120402211.

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

It is a cyclic number.

It is not a de Polignac number, because 11220402143 - 26 = 11220402079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220402103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518996 + ... + 540182.

It is an arithmetic number, because the mean of its divisors is an integer number (1422562320).

Almost surely, 211220402143 is an apocalyptic number.

11220402143 is a deficient number, since it is larger than the sum of its proper divisors (160096417).

11220402143 is an equidigital number, since it uses as much as digits as its factorization.

11220402143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28717.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11220402143 its reverse (34120402211), we get a palindrome (45340804354).

The spelling of 11220402143 in words is "eleven billion, two hundred twenty million, four hundred two thousand, one hundred forty-three".

Divisors: 1 71 7459 21187 529589 1504277 158033833 11220402143