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130574509 = 1310044193
BaseRepresentation
bin1111100100001…
…10100010101101
3100002200212112221
413302012202231
5231411341014
620542355341
73143602462
oct762064255
9302625487
10130574509
116778461a
123788bb51
132108a130
14134ad669
15b6e3b24
hex7c868ad

130574509 has 4 divisors (see below), whose sum is σ = 140618716. Its totient is φ = 120530304.

The previous prime is 130574471. The next prime is 130574539. The reversal of 130574509 is 905475031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 905475031 = 3732427547.

It can be written as a sum of positive squares in 2 ways, for example, as 6140484 + 124434025 = 2478^2 + 11155^2 .

It is a cyclic number.

It is not a de Polignac number, because 130574509 - 29 = 130573997 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 (130574539) 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, 5022084 + ... + 5022109.

It is an arithmetic number, because the mean of its divisors is an integer number (35154679).

Almost surely, 2130574509 is an apocalyptic number.

It is an amenable number.

130574509 is a deficient number, since it is larger than the sum of its proper divisors (10044207).

130574509 is a wasteful number, since it uses less digits than its factorization.

130574509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10044206.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 130574509 is about 11426.9203637726. The cubic root of 130574509 is about 507.3248478701.

The spelling of 130574509 in words is "one hundred thirty million, five hundred seventy-four thousand, five hundred nine".

Divisors: 1 13 10044193 130574509