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130242401 = 605321517
BaseRepresentation
bin1111100001101…
…01011101100001
3100002001222222122
413300311131201
5231320224101
620531314025
73141020312
oct760653541
9302058878
10130242401
1167578053
123774b915
1320ca1c13
1413424609
15b67a51b
hex7c35761

130242401 has 4 divisors (see below), whose sum is σ = 130269972. Its totient is φ = 130214832.

The previous prime is 130242373. The next prime is 130242403. The reversal of 130242401 is 104242031.

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 25200400 + 105042001 = 5020^2 + 10249^2 .

It is a cyclic number.

It is not a de Polignac number, because 130242401 - 26 = 130242337 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 130242401.

It is not an unprimeable number, because it can be changed into a prime (130242403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4706 + ... + 16811.

It is an arithmetic number, because the mean of its divisors is an integer number (32567493).

Almost surely, 2130242401 is an apocalyptic number.

It is an amenable number.

130242401 is a deficient number, since it is larger than the sum of its proper divisors (27571).

130242401 is an equidigital number, since it uses as much as digits as its factorization.

130242401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27570.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 130242401 is about 11412.3792874229. The cubic root of 130242401 is about 506.8943664816.

Adding to 130242401 its reverse (104242031), we get a palindrome (234484432).

The spelling of 130242401 in words is "one hundred thirty million, two hundred forty-two thousand, four hundred one".

Divisors: 1 6053 21517 130242401