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130240885 = 529898213
BaseRepresentation
bin1111100001101…
…01000101110101
3100002001220220111
413300311011311
5231320202020
620531303021
73141013015
oct760650565
9302056814
10130240885
11675769a5
123774aa71
1320ca1318
1413423c45
15b679d5a
hex7c35175

130240885 has 8 divisors (see below), whose sum is σ = 161678520. Its totient is φ = 100599744.

The previous prime is 130240853. The next prime is 130240921. The reversal of 130240885 is 588042031.

It can be written as a sum of positive squares in 4 ways, for example, as 19864849 + 110376036 = 4457^2 + 10506^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 130240885 - 25 = 130240853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448962 + ... + 449251.

It is an arithmetic number, because the mean of its divisors is an integer number (20209815).

Almost surely, 2130240885 is an apocalyptic number.

It is an amenable number.

130240885 is a deficient number, since it is larger than the sum of its proper divisors (31437635).

130240885 is an equidigital number, since it uses as much as digits as its factorization.

130240885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898247.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 130240885 is about 11412.3128681263. The cubic root of 130240885 is about 506.8923997518.

The spelling of 130240885 in words is "one hundred thirty million, two hundred forty thousand, eight hundred eighty-five".

Divisors: 1 5 29 145 898213 4491065 26048177 130240885