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130713489 = 323721032
BaseRepresentation
bin1111100101010…
…00011110010001
3100002221221012100
413302220132101
5231430312424
620545351013
73145021614
oct762503621
9302857170
10130713489
1167869a85
1237938469
132110847a
141350817b
15b71edc9
hex7ca8791

130713489 has 27 divisors (see below), whose sum is σ = 195951483. Its totient is φ = 83963952.

The previous prime is 130713487. The next prime is 130713491. The reversal of 130713489 is 984317031.

It is a happy number.

The square root of 130713489 is 11433.

It is a perfect power (a square), and thus also a powerful number.

130713489 is a `hidden beast` number, since 1 + 307 + 1 + 348 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (130713487) and next prime (130713491).

It can be written as a sum of positive squares in only one way, i.e., 116964225 + 13749264 = 10815^2 + 3708^2 .

It is not a de Polignac number, because 130713489 - 21 = 130713487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130713487) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1269012 + ... + 1269114.

Almost surely, 2130713489 is an apocalyptic number.

130713489 is the 11433-rd square number.

130713489 is the 5717-th centered octagonal number.

It is an amenable number.

130713489 is a deficient number, since it is larger than the sum of its proper divisors (65237994).

130713489 is an equidigital number, since it uses as much as digits as its factorization.

130713489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The cubic root of 130713489 is about 507.5047783610.

Multiplying 130713489 by its sum of digits (36), we get a square (4705685604 = 685982).

The spelling of 130713489 in words is "one hundred thirty million, seven hundred thirteen thousand, four hundred eighty-nine".