Search a number
-
+
2100050055 = 325157297247
BaseRepresentation
bin111110100101100…
…0011100010000111
312102100121121002200
41331023003202013
513300103100210
6544215205543
7103020062625
oct17513034207
95370547080
102100050055
11988472764
124a73768b3
1327610788c
1415cca0515
15c45770c0
hex7d2c3887

2100050055 has 24 divisors (see below), whose sum is σ = 3663284352. Its totient is φ = 1112889024.

The previous prime is 2100050047. The next prime is 2100050083. The reversal of 2100050055 is 5500500012.

It is not a de Polignac number, because 2100050055 - 23 = 2100050047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141559 + ... + 155688.

It is an arithmetic number, because the mean of its divisors is an integer number (152636848).

Almost surely, 22100050055 is an apocalyptic number.

2100050055 is a deficient number, since it is larger than the sum of its proper divisors (1563234297).

2100050055 is a wasteful number, since it uses less digits than its factorization.

2100050055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297415 (or 297412 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 2100050055 is about 45826.3030911288. The cubic root of 2100050055 is about 1280.5893394130.

Adding to 2100050055 its reverse (5500500012), we get a palindrome (7600550067).

The spelling of 2100050055 in words is "two billion, one hundred million, fifty thousand, fifty-five".

Divisors: 1 3 5 9 15 45 157 471 785 1413 2355 7065 297247 891741 1486235 2675223 4458705 13376115 46667779 140003337 233338895 420010011 700016685 2100050055