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130439241 = 310472
BaseRepresentation
bin1111100011001…
…01100001001001
3100002110000000000
413301211201021
5231343023431
620535433213
73142500222
oct761454111
9302400000
10130439241
11676a1a29
1237825809
13210406aa
1413476249
15b6b89e6
hex7c65849

130439241 has 33 divisors (see below), whose sum is σ = 199909261. Its totient is φ = 85109292.

The previous prime is 130439213. The next prime is 130439251. The reversal of 130439241 is 142934031.

The square root of 130439241 is 11421.

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

It is a de Polignac number, because none of the positive numbers 2k-130439241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130439251) 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 32 ways as a sum of consecutive naturals, for example, 2775280 + ... + 2775326.

Almost surely, 2130439241 is an apocalyptic number.

130439241 is the 11421-st square number.

130439241 is the 5711-st centered octagonal number.

It is an amenable number.

130439241 is a deficient number, since it is larger than the sum of its proper divisors (69470020).

130439241 is an frugal number, since it uses more digits than its factorization.

130439241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The cubic root of 130439241 is about 507.1496004733.

The spelling of 130439241 in words is "one hundred thirty million, four hundred thirty-nine thousand, two hundred forty-one".