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10012011197 = 11388601869
BaseRepresentation
bin10010101001100001…
…10010101010111101
3221211202100212101112
421110300302222331
5131001033324242
64333252051405
7503051456006
oct112460625275
927752325345
1010012011197
114278579221
121b35003b65
13c373345a6
146ad9ac1ad
153d8e81c82
hex254c32abd

10012011197 has 4 divisors (see below), whose sum is σ = 10100613180. Its totient is φ = 9923409216.

The previous prime is 10012011179. The next prime is 10012011223. The reversal of 10012011197 is 79111021001.

It is a happy number.

10012011197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 365039236 + 9646971961 = 19106^2 + 98219^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012011197 - 26 = 10012011133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012011797) 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 3 ways as a sum of consecutive naturals, for example, 44300822 + ... + 44301047.

It is an arithmetic number, because the mean of its divisors is an integer number (2525153295).

Almost surely, 210012011197 is an apocalyptic number.

It is an amenable number.

10012011197 is a deficient number, since it is larger than the sum of its proper divisors (88601983).

10012011197 is an equidigital number, since it uses as much as digits as its factorization.

10012011197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88601982.

The product of its (nonzero) digits is 126, while the sum is 23.

Adding to 10012011197 its reverse (79111021001), we get a palindrome (89123032198).

The spelling of 10012011197 in words is "ten billion, twelve million, eleven thousand, one hundred ninety-seven".

Divisors: 1 113 88601869 10012011197