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130150421 = 709183569
BaseRepresentation
bin1111100000111…
…11000000010101
3100001220022210222
413300133000111
5231304303141
620525324125
73140155202
oct760370025
9301808728
10130150421
1167514a35
1237706645
1320c6c0ab
14133dcca9
15b65d14b
hex7c1f015

130150421 has 4 divisors (see below), whose sum is σ = 130334700. Its totient is φ = 129966144.

The previous prime is 130150417. The next prime is 130150451. The reversal of 130150421 is 124051031.

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 31922500 + 98227921 = 5650^2 + 9911^2 .

It is a cyclic number.

It is not a de Polignac number, because 130150421 - 22 = 130150417 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 130150421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130150451) 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 3 ways as a sum of consecutive naturals, for example, 91076 + ... + 92493.

It is an arithmetic number, because the mean of its divisors is an integer number (32583675).

Almost surely, 2130150421 is an apocalyptic number.

It is an amenable number.

130150421 is a deficient number, since it is larger than the sum of its proper divisors (184279).

130150421 is an equidigital number, since it uses as much as digits as its factorization.

130150421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184278.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 130150421 is about 11408.3487411632. The cubic root of 130150421 is about 506.7750117926.

The spelling of 130150421 in words is "one hundred thirty million, one hundred fifty thousand, four hundred twenty-one".

Divisors: 1 709 183569 130150421