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130433261 = 773255251
BaseRepresentation
bin1111100011001…
…00000011101101
3100002102200210112
413301210003231
5231342331021
620535345405
73142443620
oct761440355
9302380715
10130433261
1167698492
1237822265
132103aa5a
1413473db7
15b6b6d5b
hex7c640ed

130433261 has 8 divisors (see below), whose sum is σ = 151109184. Its totient is φ = 110268000.

The previous prime is 130433243. The next prime is 130433263. The reversal of 130433261 is 162334031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130433261 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 (130433263) 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, 127115 + ... + 128136.

It is an arithmetic number, because the mean of its divisors is an integer number (18888648).

Almost surely, 2130433261 is an apocalyptic number.

It is an amenable number.

130433261 is a deficient number, since it is larger than the sum of its proper divisors (20675923).

130433261 is an equidigital number, since it uses as much as digits as its factorization.

130433261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255331.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 130433261 is about 11420.7381985579. The cubic root of 130433261 is about 507.1418502469.

Adding to 130433261 its reverse (162334031), we get a palindrome (292767292).

The spelling of 130433261 in words is "one hundred thirty million, four hundred thirty-three thousand, two hundred sixty-one".

Divisors: 1 7 73 511 255251 1786757 18633323 130433261