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131007241 = 235695967
BaseRepresentation
bin1111100111100…
…00001100001001
3100010111212011001
413303300030021
5232014212431
620555535001
73150354211
oct763601411
9303455131
10131007241
1167a4a752
1237a5a461
13211ac0a1
1413583241
15b77be61
hex7cf0309

131007241 has 4 divisors (see below), whose sum is σ = 136703232. Its totient is φ = 125311252.

The previous prime is 131007229. The next prime is 131007277. The reversal of 131007241 is 142700131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131007241 - 27 = 131007113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131007211) 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 3 ways as a sum of consecutive naturals, for example, 2847961 + ... + 2848006.

It is an arithmetic number, because the mean of its divisors is an integer number (34175808).

Almost surely, 2131007241 is an apocalyptic number.

It is an amenable number.

131007241 is a deficient number, since it is larger than the sum of its proper divisors (5695991).

131007241 is an equidigital number, since it uses as much as digits as its factorization.

131007241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695990.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 131007241 is about 11445.8394624422. The cubic root of 131007241 is about 507.8846652111.

Adding to 131007241 its reverse (142700131), we get a palindrome (273707372).

The spelling of 131007241 in words is "one hundred thirty-one million, seven thousand, two hundred forty-one".

Divisors: 1 23 5695967 131007241