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131240422 = 23173107271
BaseRepresentation
bin1111101001010…
…01000111100110
3100010221201000101
413310221013212
5232044143142
621004534314
73152345065
oct764510746
9303851011
10131240422
1168099965
1237b5139a
1321261271
14136041dc
15b7c60b7
hex7d291e6

131240422 has 32 divisors (see below), whose sum is σ = 208687104. Its totient is φ = 61819200.

The previous prime is 131240413. The next prime is 131240441. The reversal of 131240422 is 224042131.

It is a self number, because there is not a number n which added to its sum of digits gives 131240422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484147 + ... + 484417.

It is an arithmetic number, because the mean of its divisors is an integer number (6521472).

Almost surely, 2131240422 is an apocalyptic number.

131240422 is a deficient number, since it is larger than the sum of its proper divisors (77446682).

131240422 is a wasteful number, since it uses less digits than its factorization.

131240422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 131240422 is about 11456.0212115725. The cubic root of 131240422 is about 508.1858161457.

Adding to 131240422 its reverse (224042131), we get a palindrome (355282553).

The spelling of 131240422 in words is "one hundred thirty-one million, two hundred forty thousand, four hundred twenty-two".

Divisors: 1 2 31 62 73 107 146 214 271 542 2263 3317 4526 6634 7811 8401 15622 16802 19783 28997 39566 57994 242141 484282 613273 898907 1226546 1797814 2116781 4233562 65620211 131240422