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1913427029 = 4344498303
BaseRepresentation
bin111001000001100…
…1001010001010101
311221100110011102202
41302003021101111
512404314131104
6513511214245
765262601313
oct16203112125
94840404382
101913427029
118a2097058
12454977385
13246555257
141421a10b3
15b2eb151e
hex720c9455

1913427029 has 4 divisors (see below), whose sum is σ = 1957925376. Its totient is φ = 1868928684.

The previous prime is 1913427023. The next prime is 1913427059. The reversal of 1913427029 is 9207243191.

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.

It is a cyclic number.

It is not a de Polignac number, because 1913427029 - 24 = 1913427013 is a prime.

It is a super-2 number, since 2×19134270292 = 7322405990615533682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1913426983 and 1913427001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913427023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22249109 + ... + 22249194.

It is an arithmetic number, because the mean of its divisors is an integer number (489481344).

Almost surely, 21913427029 is an apocalyptic number.

It is an amenable number.

1913427029 is a deficient number, since it is larger than the sum of its proper divisors (44498347).

1913427029 is an equidigital number, since it uses as much as digits as its factorization.

1913427029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44498346.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 1913427029 is about 43742.7368713939. The cubic root of 1913427029 is about 1241.4730648848.

The spelling of 1913427029 in words is "one billion, nine hundred thirteen million, four hundred twenty-seven thousand, twenty-nine".

Divisors: 1 43 44498303 1913427029