Search a number
-
+
105154049 = 72111343349
BaseRepresentation
bin1100100010010…
…00011000000001
321022212101020102
412101020120001
5203404412144
614233452145
72414536400
oct621103001
9238771212
10105154049
11543a1880
122b271055
1318a29740
14dd73637
159371b4e
hex6448601

105154049 has 48 divisors (see below), whose sum is σ = 147470400. Its totient is φ = 73664640.

The previous prime is 105154043. The next prime is 105154051. The reversal of 105154049 is 940451501.

105154049 = T2190 + T2191 + ... + T2232.

It is a Cunningham number, because it is equal to 4723+1.

It is not a de Polignac number, because 105154049 - 28 = 105153793 is a prime.

It is a super-2 number, since 2×1051540492 = 22114748042188802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105154043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 301127 + ... + 301475.

It is an arithmetic number, because the mean of its divisors is an integer number (3072300).

Almost surely, 2105154049 is an apocalyptic number.

It is an amenable number.

105154049 is a deficient number, since it is larger than the sum of its proper divisors (42316351).

105154049 is a wasteful number, since it uses less digits than its factorization.

105154049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 105154049 is about 10254.4648324523. The cubic root of 105154049 is about 472.0000014962. Note that the first 5 decimals are identical.

The spelling of 105154049 in words is "one hundred five million, one hundred fifty-four thousand, forty-nine".

Divisors: 1 7 11 13 43 49 77 91 143 301 349 473 539 559 637 1001 2107 2443 3311 3839 3913 4537 6149 7007 15007 17101 23177 26873 27391 31759 43043 49907 105049 165077 188111 195091 222313 301301 349349 735343 1155539 1365637 2146001 2445443 8088773 9559459 15022007 105154049