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1918679342 = 23130946441
BaseRepresentation
bin111001001011100…
…1011100100101110
311221201100000020212
41302113023210232
512412140214332
6514215542422
765355335216
oct16227134456
94851300225
101918679342
118a5054208
1245668aa12
13247673b28
14142b6b246
15b369c8b2
hex725cb92e

1918679342 has 8 divisors (see below), whose sum is σ = 2970858432. Its totient is φ = 928393200.

The previous prime is 1918679309. The next prime is 1918679359. The reversal of 1918679342 is 2439768191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 15473159 + ... + 15473282.

It is an arithmetic number, because the mean of its divisors is an integer number (371357304).

Almost surely, 21918679342 is an apocalyptic number.

1918679342 is a deficient number, since it is larger than the sum of its proper divisors (1052179090).

1918679342 is a wasteful number, since it uses less digits than its factorization.

1918679342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30946474.

The product of its digits is 653184, while the sum is 50.

The square root of 1918679342 is about 43802.7321294003. The cubic root of 1918679342 is about 1242.6079653884.

The spelling of 1918679342 in words is "one billion, nine hundred eighteen million, six hundred seventy-nine thousand, three hundred forty-two".

Divisors: 1 2 31 62 30946441 61892882 959339671 1918679342