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130425293 = 819115923
BaseRepresentation
bin1111100011000…
…10000111001101
3100002102021212102
413301202013031
5231342102133
620535244445
73142411445
oct761420715
9302367772
10130425293
11676924a9
1237819725
132103723b
1413471125
15b6b47e8
hex7c621cd

130425293 has 4 divisors (see below), whose sum is σ = 130449408. Its totient is φ = 130401180.

The previous prime is 130425289. The next prime is 130425301. The reversal of 130425293 is 392524031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 392524031 = 1201326831.

It is a cyclic number.

It is not a de Polignac number, because 130425293 - 22 = 130425289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130425263) 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, 230 + ... + 16152.

It is an arithmetic number, because the mean of its divisors is an integer number (32612352).

Almost surely, 2130425293 is an apocalyptic number.

It is an amenable number.

130425293 is a deficient number, since it is larger than the sum of its proper divisors (24115).

130425293 is an equidigital number, since it uses as much as digits as its factorization.

130425293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24114.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 130425293 is about 11420.3893541332. The cubic root of 130425293 is about 507.1315231557.

The spelling of 130425293 in words is "one hundred thirty million, four hundred twenty-five thousand, two hundred ninety-three".

Divisors: 1 8191 15923 130425293