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75063630 = 2352502121
BaseRepresentation
bin1000111100101…
…10000101001110
312020020121221110
410132112011032
5123204014010
611240512450
71601013255
oct436260516
9166217843
1075063630
113940a464
122117b726
1312722565
149d7d79c
1568cb120
hex479614e

75063630 has 16 divisors (see below), whose sum is σ = 180152784. Its totient is φ = 20016960.

The previous prime is 75063607. The next prime is 75063631. The reversal of 75063630 is 3636057.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2502121 = 75063630 / (7 + 5 + 0 + 6 + 3 + 6 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75063631) 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 7 ways as a sum of consecutive naturals, for example, 1251031 + ... + 1251090.

It is an arithmetic number, because the mean of its divisors is an integer number (11259549).

Almost surely, 275063630 is an apocalyptic number.

75063630 is an abundant number, since it is smaller than the sum of its proper divisors (105089154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75063630 is a wasteful number, since it uses less digits than its factorization.

75063630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502131.

The product of its (nonzero) digits is 11340, while the sum is 30.

The square root of 75063630 is about 8663.9269387501. The cubic root of 75063630 is about 421.8355603185.

Adding to 75063630 its reverse (3636057), we get a palindrome (78699687).

The spelling of 75063630 in words is "seventy-five million, sixty-three thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2502121 5004242 7506363 12510605 15012726 25021210 37531815 75063630