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131326626 = 2321887771
BaseRepresentation
bin1111101001111…
…10001010100010
3100011010002021010
413310332022202
5232104423001
621010441350
73153154314
oct764761242
9304102233
10131326626
1168148702
1237b93256
1321291582
14136277b4
15b7e18d6
hex7d3e2a2

131326626 has 8 divisors (see below), whose sum is σ = 262653264. Its totient is φ = 43775540.

The previous prime is 131326621. The next prime is 131326627. The reversal of 131326626 is 626623131.

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

131326626 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 131326593 and 131326602.

It is not an unprimeable number, because it can be changed into a prime (131326621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10943880 + ... + 10943891.

It is an arithmetic number, because the mean of its divisors is an integer number (32831658).

Almost surely, 2131326626 is an apocalyptic number.

131326626 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.

131326626 is a wasteful number, since it uses less digits than its factorization.

131326626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21887776.

The product of its digits is 7776, while the sum is 30.

The square root of 131326626 is about 11459.7829822384. The cubic root of 131326626 is about 508.2970574370.

Adding to 131326626 its reverse (626623131), we get a palindrome (757949757).

The spelling of 131326626 in words is "one hundred thirty-one million, three hundred twenty-six thousand, six hundred twenty-six".

Divisors: 1 2 3 6 21887771 43775542 65663313 131326626