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83001011111 = 194368474269
BaseRepresentation
bin100110101001100111…
…1101110101110100111
321221020111001020022122
41031103033232232213
52324441224323421
6102044035420155
75665561645064
oct1152317565647
9257214036278
1083001011111
11322229a8157
1214104a5465b
137a99ab1635
144035565c6b
15225bbb22ab
hex13533eeba7

83001011111 has 4 divisors (see below), whose sum is σ = 87369485400. Its totient is φ = 78632536824.

The previous prime is 83001011083. The next prime is 83001011117. The reversal of 83001011111 is 11111010038.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83001011111 - 26 = 83001011047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83001011111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83001011117) 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 3 ways as a sum of consecutive naturals, for example, 2184237116 + ... + 2184237153.

It is an arithmetic number, because the mean of its divisors is an integer number (21842371350).

Almost surely, 283001011111 is an apocalyptic number.

83001011111 is a deficient number, since it is larger than the sum of its proper divisors (4368474289).

83001011111 is a wasteful number, since it uses less digits than its factorization.

83001011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368474288.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 83001011111 its reverse (11111010038), we get a palindrome (94112021149).

The spelling of 83001011111 in words is "eighty-three billion, one million, eleven thousand, one hundred eleven".

Divisors: 1 19 4368474269 83001011111