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130413805 = 526082761
BaseRepresentation
bin1111100010111…
…11010011101101
3100002101201002221
413301133103231
5231341220210
620535115341
73142333114
oct761372355
9302351087
10130413805
1167684905
1237812b51
1321031c42
141346ac7b
15b6b11da
hex7c5f4ed

130413805 has 4 divisors (see below), whose sum is σ = 156496572. Its totient is φ = 104331040.

The previous prime is 130413793. The next prime is 130413823. The reversal of 130413805 is 508314031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53202436 + 77211369 = 7294^2 + 8787^2 .

It is not a de Polignac number, because 130413805 - 27 = 130413677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130413805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13041376 + ... + 13041385.

It is an arithmetic number, because the mean of its divisors is an integer number (39124143).

Almost surely, 2130413805 is an apocalyptic number.

It is an amenable number.

130413805 is a deficient number, since it is larger than the sum of its proper divisors (26082767).

130413805 is an equidigital number, since it uses as much as digits as its factorization.

130413805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26082766.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 130413805 is about 11419.8863829725. The cubic root of 130413805 is about 507.1166331553.

Adding to 130413805 its reverse (508314031), we get a palindrome (638727836).

The spelling of 130413805 in words is "one hundred thirty million, four hundred thirteen thousand, eight hundred five".

Divisors: 1 5 26082761 130413805