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131522334 = 2321920389
BaseRepresentation
bin1111101011011…
…01111100011110
3100011111000201120
413311231330132
5232132203314
621014551410
73154631016
oct765557436
9304430646
10131522334
1168271749
1238068566
132132c688
1413678c46
15b82e8a9
hex7d6df1e

131522334 has 8 divisors (see below), whose sum is σ = 263044680. Its totient is φ = 43840776.

The previous prime is 131522333. The next prime is 131522357. The reversal of 131522334 is 433225131.

It is a sphenic number, since it is the product of 3 distinct primes.

131522334 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131522333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10960189 + ... + 10960200.

It is an arithmetic number, because the mean of its divisors is an integer number (32880585).

Almost surely, 2131522334 is an apocalyptic number.

131522334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131522334 is a wasteful number, since it uses less digits than its factorization.

131522334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21920394.

The product of its digits is 2160, while the sum is 24.

The square root of 131522334 is about 11468.3187085117. The cubic root of 131522334 is about 508.5494267374.

Adding to 131522334 its reverse (433225131), we get a palindrome (564747465).

The spelling of 131522334 in words is "one hundred thirty-one million, five hundred twenty-two thousand, three hundred thirty-four".

Divisors: 1 2 3 6 21920389 43840778 65761167 131522334