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130247953 = 1111840723
BaseRepresentation
bin1111100001101…
…10110100010001
3100002002021121021
413300312310101
5231320413303
620531355441
73141042433
oct760666421
9302067537
10130247953
1167581240
1237752b81
1320ca45c4
1413426653
15b67bebd
hex7c36d11

130247953 has 4 divisors (see below), whose sum is σ = 142088688. Its totient is φ = 118407220.

The previous prime is 130247947. The next prime is 130247963. The reversal of 130247953 is 359742031.

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 a de Polignac number, because none of the positive numbers 2k-130247953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130247963) 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, 5920351 + ... + 5920372.

It is an arithmetic number, because the mean of its divisors is an integer number (35522172).

Almost surely, 2130247953 is an apocalyptic number.

It is an amenable number.

130247953 is a deficient number, since it is larger than the sum of its proper divisors (11840735).

130247953 is a wasteful number, since it uses less digits than its factorization.

130247953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11840734.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 130247953 is about 11412.6225294627. The cubic root of 130247953 is about 506.9015690452.

Adding to 130247953 its reverse (359742031), we get a palindrome (489989984).

The spelling of 130247953 in words is "one hundred thirty million, two hundred forty-seven thousand, nine hundred fifty-three".

Divisors: 1 11 11840723 130247953