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9111442001 = 19479549579
BaseRepresentation
bin10000111110001010…
…11001001001010001
3212111222210012200212
420133011121021101
5122130012121001
64104041453505
7441534656564
oct103705311121
925458705625
109111442001
113956198262
1219234a1295
13b2289bacc
146261444db
15384d917bb
hex21f159251

9111442001 has 4 divisors (see below), whose sum is σ = 9590991600. Its totient is φ = 8631892404.

The previous prime is 9111441959. The next prime is 9111442027. The reversal of 9111442001 is 1002441119.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1002441119 = 7114118889.

It is a cyclic number.

It is not a de Polignac number, because 9111442001 - 222 = 9107247697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9111442031) 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, 239774771 + ... + 239774808.

It is an arithmetic number, because the mean of its divisors is an integer number (2397747900).

Almost surely, 29111442001 is an apocalyptic number.

It is an amenable number.

9111442001 is a deficient number, since it is larger than the sum of its proper divisors (479549599).

9111442001 is a wasteful number, since it uses less digits than its factorization.

9111442001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479549598.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 9111442001 is about 95453.8736825279. The cubic root of 9111442001 is about 2088.6341358433.

The spelling of 9111442001 in words is "nine billion, one hundred eleven million, four hundred forty-two thousand, one".

Divisors: 1 19 479549579 9111442001