Search a number
-
+
11406031 = 7131773101
BaseRepresentation
bin101011100000…
…101011001111
3210110111010121
4223200223033
510404443111
61044245411
7165643510
oct53405317
923414117
1011406031
11649057a
1239a0867
132494840
14172ca07
151004871
hexae0acf

11406031 has 32 divisors (see below), whose sum is σ = 15216768. Its totient is φ = 8294400.

The previous prime is 11406001. The next prime is 11406041. The reversal of 11406031 is 13060411.

It is a 12-Lehmer number, since φ(11406031) divides (11406031-1)12.

It is a cyclic number.

It is not a de Polignac number, because 11406031 - 29 = 11405519 is a prime.

It is a super-2 number, since 2×114060312 = 260195086345922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11405996 and 11406014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11406001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112881 + ... + 112981.

It is an arithmetic number, because the mean of its divisors is an integer number (475524).

Almost surely, 211406031 is an apocalyptic number.

11406031 is a deficient number, since it is larger than the sum of its proper divisors (3810737).

11406031 is a wasteful number, since it uses less digits than its factorization.

11406031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 11406031 is about 3377.2815991563. The cubic root of 11406031 is about 225.1013929850.

Adding to 11406031 its reverse (13060411), we get a palindrome (24466442).

The spelling of 11406031 in words is "eleven million, four hundred six thousand, thirty-one".

Divisors: 1 7 13 17 73 91 101 119 221 511 707 949 1241 1313 1547 1717 6643 7373 8687 9191 12019 16133 22321 51611 95849 112931 125341 156247 670943 877387 1629433 11406031