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8019190343 = 17471717079
BaseRepresentation
bin1110111011111101…
…10010001001000111
3202200212112002002202
413131332302021013
5112410403042333
63403423025115
7402502664453
oct73576621107
922625462082
108019190343
11344569543a
12167973b19b
139aa501b58
14561061663
1531e03b5e8
hex1ddfb2247

8019190343 has 4 divisors (see below), whose sum is σ = 8490907440. Its totient is φ = 7547473248.

The previous prime is 8019190321. The next prime is 8019190349. The reversal of 8019190343 is 3430919108.

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 8019190343 - 218 = 8018928199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8019190297 and 8019190306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8019190349) 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, 235858523 + ... + 235858556.

It is an arithmetic number, because the mean of its divisors is an integer number (2122726860).

Almost surely, 28019190343 is an apocalyptic number.

8019190343 is a deficient number, since it is larger than the sum of its proper divisors (471717097).

8019190343 is a wasteful number, since it uses less digits than its factorization.

8019190343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471717096.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 8019190343 is about 89549.9321216940. The cubic root of 8019190343 is about 2001.5979182386.

The spelling of 8019190343 in words is "eight billion, nineteen million, one hundred ninety thousand, three hundred forty-three".

Divisors: 1 17 471717079 8019190343