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3938006105 = 511231209971
BaseRepresentation
bin1110101010111001…
…0011010001011001
3101011110001102210222
43222232103101121
531031112143410
61450433045425
7166405333235
oct35256232131
911143042728
103938006105
1117409a1300
1291a9b6875
134a9b27037
142950175c5
15180acb955
hexeab93459

3938006105 has 24 divisors (see below), whose sum is σ = 5361844992. Its totient is φ = 2771604000.

The previous prime is 3938006071. The next prime is 3938006129. The reversal of 3938006105 is 5016008393.

It is not a de Polignac number, because 3938006105 - 222 = 3933811801 is a prime.

It is a Duffinian 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 23 ways as a sum of consecutive naturals, for example, 86231 + ... + 123740.

It is an arithmetic number, because the mean of its divisors is an integer number (223410208).

Almost surely, 23938006105 is an apocalyptic number.

It is an amenable number.

3938006105 is a deficient number, since it is larger than the sum of its proper divisors (1423838887).

3938006105 is a wasteful number, since it uses less digits than its factorization.

3938006105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210029 (or 210018 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 3938006105 is about 62753.5346016461. The cubic root of 3938006105 is about 1579.1575524135.

The spelling of 3938006105 in words is "three billion, nine hundred thirty-eight million, six thousand, one hundred five".

Divisors: 1 5 11 31 55 121 155 341 605 1705 3751 18755 209971 1049855 2309681 6509101 11548405 25406491 32545505 71600111 127032455 358000555 787601221 3938006105