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80033333111 = 153775204743
BaseRepresentation
bin100101010001001011…
…0111011111101110111
321122120122211120102122
41022202112323331313
52302402013124421
6100433344030155
75532205051454
oct1124226737567
9248518746378
1080033333111
1130a3a803806
121361700235b
137716005c54
143c3337482b
1521363a52ab
hex12a25bbf77

80033333111 has 4 divisors (see below), whose sum is σ = 80038553232. Its totient is φ = 80028112992.

The previous prime is 80033333099. The next prime is 80033333141. The reversal of 80033333111 is 11133333008.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80033333111 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 (80033333141) 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, 2586995 + ... + 2617748.

It is an arithmetic number, because the mean of its divisors is an integer number (20009638308).

Almost surely, 280033333111 is an apocalyptic number.

80033333111 is a deficient number, since it is larger than the sum of its proper divisors (5220121).

80033333111 is a wasteful number, since it uses less digits than its factorization.

80033333111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220120.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 80033333111 its reverse (11133333008), we get a palindrome (91166666119).

The spelling of 80033333111 in words is "eighty billion, thirty-three million, three hundred thirty-three thousand, one hundred eleven".

Divisors: 1 15377 5204743 80033333111