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131752073 = 237180681
BaseRepresentation
bin1111101101001…
…10000010001001
3100011220200212102
413312212002021
5232212031243
621023523145
73156605555
oct766460211
9304820772
10131752073
1168409312
12381594b5
13213b010b
14136d8865
15b8779b8
hex7da6089

131752073 has 8 divisors (see below), whose sum is σ = 139418496. Its totient is φ = 124247200.

The previous prime is 131752069. The next prime is 131752081. The reversal of 131752073 is 370257131.

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 131752073 - 22 = 131752069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131752063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38708 + ... + 41973.

It is an arithmetic number, because the mean of its divisors is an integer number (17427312).

Almost surely, 2131752073 is an apocalyptic number.

It is an amenable number.

131752073 is a deficient number, since it is larger than the sum of its proper divisors (7666423).

131752073 is an equidigital number, since it uses as much as digits as its factorization.

131752073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80775.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 131752073 is about 11478.3305841921. The cubic root of 131752073 is about 508.8453604445.

The spelling of 131752073 in words is "one hundred thirty-one million, seven hundred fifty-two thousand, seventy-three".

Divisors: 1 23 71 1633 80681 1855663 5728351 131752073