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130425 = 3523747
BaseRepresentation
bin11111110101111001
320121220120
4133311321
513133200
62443453
71052151
oct376571
9217816
10130425
1189a99
1263589
1347499
1435761
15289a0
hex1fd79

130425 has 24 divisors (see below), whose sum is σ = 226176. Its totient is φ = 66240.

The previous prime is 130423. The next prime is 130439. The reversal of 130425 is 524031.

It is not a de Polignac number, because 130425 - 21 = 130423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (130423) 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 23 ways as a sum of consecutive naturals, for example, 2752 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (9424).

2130425 is an apocalyptic number.

130425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130425 is a deficient number, since it is larger than the sum of its proper divisors (95751).

130425 is a wasteful number, since it uses less digits than its factorization.

130425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 130425 is about 361.1440155949. The cubic root of 130425 is about 50.7131143399.

Subtracting from 130425 its product of nonzero digits (120), we obtain a triangular number (130305 = T510).

Adding to 130425 its reverse (524031), we get a palindrome (654456).

It can be divided in two parts, 130 and 425, that added together give a palindrome (555).

The spelling of 130425 in words is "one hundred thirty thousand, four hundred twenty-five".

Divisors: 1 3 5 15 25 37 47 75 111 141 185 235 555 705 925 1175 1739 2775 3525 5217 8695 26085 43475 130425