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2052155105 = 5711132317827
BaseRepresentation
bin111101001010001…
…0110011011100001
312022000111021120122
41322110112123201
513200322430410
6535344450025
7101566013330
oct17224263341
95260437518
102052155105
1196342a560
12493319915
13269208680
14156793d17
15c0265e55
hex7a5166e1

2052155105 has 64 divisors (see below), whose sum is σ = 3450359808. Its totient is φ = 1129455360.

The previous prime is 2052155093. The next prime is 2052155111. The reversal of 2052155105 is 5015512502.

It is not a de Polignac number, because 2052155105 - 26 = 2052155041 is a prime.

It is a super-2 number, since 2×20521551052 = 8422681149955122050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106202 + ... + 124028.

It is an arithmetic number, because the mean of its divisors is an integer number (53911872).

Almost surely, 22052155105 is an apocalyptic number.

It is an amenable number.

2052155105 is a deficient number, since it is larger than the sum of its proper divisors (1398204703).

2052155105 is a wasteful number, since it uses less digits than its factorization.

2052155105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17886.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 2052155105 is about 45300.7185925345. The cubic root of 2052155105 is about 1270.7790918878.

Adding to 2052155105 its reverse (5015512502), we get a palindrome (7067667607).

It can be divided in two parts, 20 and 52155105, that added together give a palindrome (52155125).

The spelling of 2052155105 in words is "two billion, fifty-two million, one hundred fifty-five thousand, one hundred five".

Divisors: 1 5 7 11 13 23 35 55 65 77 91 115 143 161 253 299 385 455 715 805 1001 1265 1495 1771 2093 3289 5005 8855 10465 16445 17827 23023 89135 115115 124789 196097 231751 410021 623945 980485 1158755 1372679 1622257 2050105 2549261 2870147 4510231 5330273 6863395 8111285 12746305 14350735 17844827 22551155 26651365 31571617 37311911 58633003 89224135 157858085 186559555 293165015 410431021 2052155105