Search a number
-
+
2105422054 = 27397148667
BaseRepresentation
bin111110101111110…
…0011000011100110
312102201201112002121
41331133203003212
513302442001204
6544530300154
7103113535501
oct17537430346
95381645077
102105422054
1199050182a
124a912765a
13277268a88
1415d89c138
15c4c88b54
hex7d7e30e6

2105422054 has 16 divisors (see below), whose sum is σ = 3234421008. Its totient is φ = 1027579392.

The previous prime is 2105422051. The next prime is 2105422057. The reversal of 2105422054 is 4502245012.

It is an interprime number because it is at equal distance from previous prime (2105422051) and next prime (2105422057).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105422051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60172 + ... + 88495.

It is an arithmetic number, because the mean of its divisors is an integer number (202151313).

Almost surely, 22105422054 is an apocalyptic number.

2105422054 is a deficient number, since it is larger than the sum of its proper divisors (1128998954).

2105422054 is a wasteful number, since it uses less digits than its factorization.

2105422054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148839.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2105422054 is about 45884.8782716049. The cubic root of 2105422054 is about 1281.6803399359.

Adding to 2105422054 its reverse (4502245012), we get a palindrome (6607667066).

The spelling of 2105422054 in words is "two billion, one hundred five million, four hundred twenty-two thousand, fifty-four".

Divisors: 1 2 73 97 146 194 7081 14162 148667 297334 10852691 14420699 21705382 28841398 1052711027 2105422054