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10228950985 = 511247359731
BaseRepresentation
bin10011000011011000…
…10110011111001001
3222101212120112211111
421201230112133021
5131422102412420
64411001530321
7511324435351
oct114154263711
928355515744
1010228950985
114379a81300
121b957a39a1
13c70270126
146d071db61
153ed03545a
hex261b167c9

10228950985 has 24 divisors (see below), whose sum is σ = 13779174528. Its totient is φ = 7280935200.

The previous prime is 10228950971. The next prime is 10228950989. The reversal of 10228950985 is 58905982201.

10228950985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10228950985 - 223 = 10220562377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10228950989) 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 23 ways as a sum of consecutive naturals, for example, 151431 + ... + 208300.

It is an arithmetic number, because the mean of its divisors is an integer number (574132272).

Almost surely, 210228950985 is an apocalyptic number.

It is an amenable number.

10228950985 is a deficient number, since it is larger than the sum of its proper divisors (3550223543).

10228950985 is a wasteful number, since it uses less digits than its factorization.

10228950985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359805 (or 359794 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 49.

The spelling of 10228950985 in words is "ten billion, two hundred twenty-eight million, nine hundred fifty thousand, nine hundred eighty-five".

Divisors: 1 5 11 47 55 121 235 517 605 2585 5687 28435 359731 1798655 3957041 16907357 19785205 43527451 84536785 185980927 217637255 929904635 2045790197 10228950985