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75120011201 = 3714924775501
BaseRepresentation
bin100010111110110000…
…0000110011111000001
321011220020112221212002
41011331200012133001
52212321210324301
654302030313345
75266354363004
oct1057540063701
9234806487762
1075120011201
1129949319294
1212685658855
137112105291
1438c89d753b
151e49d7116b
hex117d8067c1

75120011201 has 16 divisors (see below), whose sum is σ = 77713549200. Its totient is φ = 72556704000.

The previous prime is 75120011167. The next prime is 75120011203. The reversal of 75120011201 is 10211002157.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 8154993025 + 66965018176 = 90305^2 + 258776^2 .

It is a de Polignac number, because none of the positive numbers 2k-75120011201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75120011203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13652951 + ... + 13658451.

It is an arithmetic number, because the mean of its divisors is an integer number (4857096825).

Almost surely, 275120011201 is an apocalyptic number.

It is an amenable number.

75120011201 is a deficient number, since it is larger than the sum of its proper divisors (2593537999).

75120011201 is a wasteful number, since it uses less digits than its factorization.

75120011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8164.

The product of its (nonzero) digits is 140, while the sum is 20.

Adding to 75120011201 its reverse (10211002157), we get a palindrome (85331013358).

The spelling of 75120011201 in words is "seventy-five billion, one hundred twenty million, eleven thousand, two hundred one".

Divisors: 1 37 149 2477 5501 5513 91649 203537 369073 819649 13625977 13655701 30327013 504161149 2030270573 75120011201