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1993286341 = 2338554877
BaseRepresentation
bin111011011001111…
…0010001011000101
312010220201102211001
41312303302023011
513040240130331
6525443013301
7100252440304
oct16663621305
95126642731
101993286341
11933181592
1247766a231
13259c66597
1414ca2c43b
15b9ed8561
hex76cf22c5

1993286341 has 4 divisors (see below), whose sum is σ = 2001841452. Its totient is φ = 1984731232.

The previous prime is 1993286297. The next prime is 1993286353. The reversal of 1993286341 is 1436823991.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 399600100 + 1593686241 = 19990^2 + 39921^2 .

It is a cyclic number.

It is not a de Polignac number, because 1993286341 - 29 = 1993285829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1993286291 and 1993286300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993286041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4277206 + ... + 4277671.

It is an arithmetic number, because the mean of its divisors is an integer number (500460363).

Almost surely, 21993286341 is an apocalyptic number.

It is an amenable number.

1993286341 is a deficient number, since it is larger than the sum of its proper divisors (8555111).

1993286341 is an equidigital number, since it uses as much as digits as its factorization.

1993286341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8555110.

The product of its digits is 279936, while the sum is 46.

The square root of 1993286341 is about 44646.2354628025. The cubic root of 1993286341 is about 1258.5096894334.

The spelling of 1993286341 in words is "one billion, nine hundred ninety-three million, two hundred eighty-six thousand, three hundred forty-one".

Divisors: 1 233 8554877 1993286341