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10385000444 = 2271328530221
BaseRepresentation
bin10011010101111111…
…01000011111111100
3222210202012200110002
421222333220133330
5132232030003234
64434254333432
7515231022140
oct115277503774
928722180402
1010385000444
11444a0755a5
122019aba278
13c966a96a0
14707341220
1540baac27e
hex26afe87fc

10385000444 has 24 divisors (see below), whose sum is σ = 22367694048. Its totient is φ = 4108351680.

The previous prime is 10385000429. The next prime is 10385000447. The reversal of 10385000444 is 44400058301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10385000447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14264747 + ... + 14265474.

It is an arithmetic number, because the mean of its divisors is an integer number (931987252).

Almost surely, 210385000444 is an apocalyptic number.

10385000444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10385000444 is an abundant number, since it is smaller than the sum of its proper divisors (11982693604).

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

10385000444 is a wasteful number, since it uses less digits than its factorization.

10385000444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28530245 (or 28530243 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 10385000444 its reverse (44400058301), we get a palindrome (54785058745).

The spelling of 10385000444 in words is "ten billion, three hundred eighty-five million, four hundred forty-four", and thus it is an aban number.

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 28530221 57060442 114120884 199711547 370892873 399423094 741785746 798846188 1483571492 2596250111 5192500222 10385000444