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1942213105 = 57191290533
BaseRepresentation
bin111001111000011…
…1101000111110001
312000100121122111201
41303300331013301
512434201304410
6520420211201
766062352610
oct16360750761
95010548451
101942213105
119073684a8
12462539b01
1324c4c3831
14145d35877
15b579a83a
hex73c3d1f1

1942213105 has 16 divisors (see below), whose sum is σ = 2677561344. Its totient is φ = 1324825920.

The previous prime is 1942213103. The next prime is 1942213111. The reversal of 1942213105 is 5013122491.

It is not a de Polignac number, because 1942213105 - 21 = 1942213103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1942213103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138582 + ... + 151951.

It is an arithmetic number, because the mean of its divisors is an integer number (167347584).

Almost surely, 21942213105 is an apocalyptic number.

It is an amenable number.

1942213105 is a deficient number, since it is larger than the sum of its proper divisors (735348239).

1942213105 is a wasteful number, since it uses less digits than its factorization.

1942213105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290736.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1942213105 is about 44070.5469106069. The cubic root of 1942213105 is about 1247.6677803742.

Adding to 1942213105 its reverse (5013122491), we get a palindrome (6955335596).

The spelling of 1942213105 in words is "one billion, nine hundred forty-two million, two hundred thirteen thousand, one hundred five".

Divisors: 1 5 7 35 191 955 1337 6685 290533 1452665 2033731 10168655 55491803 277459015 388442621 1942213105