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3130425 = 325213913
BaseRepresentation
bin1011111100010000111001
312220001010200
423330100321
51300133200
6151032413
735415414
oct13742071
95801120
103130425
111848a31
12106b709
13857b2c
145b6b7b
1541c800
hex2fc439

3130425 has 18 divisors (see below), whose sum is σ = 5607342. Its totient is φ = 1669440.

The previous prime is 3130417. The next prime is 3130427. The reversal of 3130425 is 5240313.

It can be written as a sum of positive squares in 3 ways, for example, as 318096 + 2812329 = 564^2 + 1677^2 .

It is not a de Polignac number, because 3130425 - 23 = 3130417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3130398 and 3130407.

It is not an unprimeable number, because it can be changed into a prime (3130427) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6732 + ... + 7181.

It is an arithmetic number, because the mean of its divisors is an integer number (311519).

Almost surely, 23130425 is an apocalyptic number.

It is an amenable number.

3130425 is a deficient number, since it is larger than the sum of its proper divisors (2476917).

3130425 is a wasteful number, since it uses less digits than its factorization.

3130425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13929 (or 13921 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3130425 is about 1769.3007093199. The cubic root of 3130425 is about 146.2854395816.

Adding to 3130425 its reverse (5240313), we get a palindrome (8370738).

It can be divided in two parts, 31304 and 25, that added together give a square (31329 = 1772).

The spelling of 3130425 in words is "three million, one hundred thirty thousand, four hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 13913 41739 69565 125217 208695 347825 626085 1043475 3130425