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131452223 = 733295641
BaseRepresentation
bin1111101010111…
…00110100111111
3100011100110112212
413311130310333
5232122432343
621013251035
73154216430
oct765346477
9304313485
10131452223
1168224001
1238033a7b
13213067a6
141365b487
15b818c18
hex7d5cd3f

131452223 has 8 divisors (see below), whose sum is σ = 150302880. Its totient is φ = 112619520.

The previous prime is 131452219. The next prime is 131452253. The reversal of 131452223 is 322254131.

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

It is a cyclic number.

It is not a de Polignac number, because 131452223 - 22 = 131452219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131452253) 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 7 ways as a sum of consecutive naturals, for example, 20483 + ... + 26123.

It is an arithmetic number, because the mean of its divisors is an integer number (18787860).

Almost surely, 2131452223 is an apocalyptic number.

131452223 is a deficient number, since it is larger than the sum of its proper divisors (18850657).

131452223 is an equidigital number, since it uses as much as digits as its factorization.

131452223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977.

The product of its digits is 1440, while the sum is 23.

The square root of 131452223 is about 11465.2615757339. The cubic root of 131452223 is about 508.4590460261.

The spelling of 131452223 in words is "one hundred thirty-one million, four hundred fifty-two thousand, two hundred twenty-three".

Divisors: 1 7 3329 5641 23303 39487 18778889 131452223