Search a number
-
+
131101142 = 2474333221
BaseRepresentation
bin1111101000001…
…11000111010110
3100010200121221212
413310013013112
5232030214032
621001541422
73151225034
oct764070726
9303617855
10131101142
1168004257
1237aa4872
1321212a53
14135a9554
15b799bb2
hex7d071d6

131101142 has 16 divisors (see below), whose sum is σ = 201362112. Its totient is φ = 63987840.

The previous prime is 131101133. The next prime is 131101147. The reversal of 131101142 is 241101131.

131101142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131101147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39092 + ... + 42312.

It is an arithmetic number, because the mean of its divisors is an integer number (12585132).

Almost surely, 2131101142 is an apocalyptic number.

131101142 is a deficient number, since it is larger than the sum of its proper divisors (70260970).

131101142 is a wasteful number, since it uses less digits than its factorization.

131101142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 131101142 is about 11449.9406985364. The cubic root of 131101142 is about 508.0059803582.

Adding to 131101142 its reverse (241101131), we get a palindrome (372202273).

The spelling of 131101142 in words is "one hundred thirty-one million, one hundred one thousand, one hundred forty-two".

Divisors: 1 2 47 94 433 866 3221 6442 20351 40702 151387 302774 1394693 2789386 65550571 131101142