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10021444412 = 227357908729
BaseRepresentation
bin10010101010101001…
…10001101100111100
3221212102010010022212
421111110301230330
5131010442210122
64334230155552
7503224605050
oct112524615474
927772103285
1010021444412
114282931571
121b381b2bb8
13c39288185
146b0d45c60
153d9be6ce2
hex255531b3c

10021444412 has 12 divisors (see below), whose sum is σ = 20042888880. Its totient is φ = 4294904736.

The previous prime is 10021444361. The next prime is 10021444423. The reversal of 10021444412 is 21444412001.

10021444412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

10021444412 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 178954337 + ... + 178954392.

It is an arithmetic number, because the mean of its divisors is an integer number (1670240740).

Almost surely, 210021444412 is an apocalyptic number.

It is an amenable number.

10021444412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10021444412 is a wasteful number, since it uses less digits than its factorization.

10021444412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357908740 (or 357908738 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 10021444412 its reverse (21444412001), we get a palindrome (31465856413).

The spelling of 10021444412 in words is "ten billion, twenty-one million, four hundred forty-four thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 357908729 715817458 1431634916 2505361103 5010722206 10021444412