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42562130 = 2513327401
BaseRepresentation
bin1010001001011…
…1001001010010
32222002101021012
42202113021102
541343442010
64120130522
71024525562
oct242271122
988071235
1042562130
1122030616
1212306a42
138a82ac0
14591cda2
153b0b005
hex2897252

42562130 has 16 divisors (see below), whose sum is σ = 82505304. Its totient is φ = 15715200.

The previous prime is 42562129. The next prime is 42562133. The reversal of 42562130 is 3126524.

It can be written as a sum of positive squares in 4 ways, for example, as 21613201 + 20948929 = 4649^2 + 4577^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42562096 and 42562105.

It is not an unprimeable number, because it can be changed into a prime (42562133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163571 + ... + 163830.

Almost surely, 242562130 is an apocalyptic number.

42562130 is a deficient number, since it is larger than the sum of its proper divisors (39943174).

42562130 is a wasteful number, since it uses less digits than its factorization.

42562130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327421.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 42562130 is about 6523.9658184267. The cubic root of 42562130 is about 349.1465737918.

Adding to 42562130 its reverse (3126524), we get a palindrome (45688654).

The spelling of 42562130 in words is "forty-two million, five hundred sixty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 327401 654802 1637005 3274010 4256213 8512426 21281065 42562130