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130533247 = 1313176649
BaseRepresentation
bin1111100011111…
…00011101111111
3100002121202221201
413301330131333
5231404030442
620541440331
73143341255
oct761743577
9302552851
10130533247
1167756619
12378700a7
1321074410
141349c5d5
15b6d67b7
hex7c7c77f

130533247 has 8 divisors (see below), whose sum is σ = 141649200. Its totient is φ = 119570880.

The previous prime is 130533133. The next prime is 130533283. The reversal of 130533247 is 742335031.

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

It is a de Polignac number, because none of the positive numbers 2k-130533247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130537247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36622 + ... + 40027.

It is an arithmetic number, because the mean of its divisors is an integer number (17706150).

Almost surely, 2130533247 is an apocalyptic number.

130533247 is a deficient number, since it is larger than the sum of its proper divisors (11115953).

130533247 is a wasteful number, since it uses less digits than its factorization.

130533247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76793.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 130533247 is about 11425.1147477826. The cubic root of 130533247 is about 507.2714034333.

Adding to 130533247 its reverse (742335031), we get a palindrome (872868278).

The spelling of 130533247 in words is "one hundred thirty million, five hundred thirty-three thousand, two hundred forty-seven".

Divisors: 1 13 131 1703 76649 996437 10041019 130533247