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39138062808 = 23313346936161
BaseRepresentation
bin100100011100110011…
…110111000111011000
310202000121011120221210
4210130303313013120
51120123321002213
625551344303120
72553610021245
oct443463670730
9122017146853
1039138062808
1115664463959
127703311aa0
1338c9624a60
141c73d1c5cc
151040ec80c3
hex91ccf71d8

39138062808 has 64 divisors (see below), whose sum is σ = 105404997600. Its totient is φ = 12038676480.

The previous prime is 39138062773. The next prime is 39138062809. The reversal of 39138062808 is 80826083193.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39138062809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1064248 + ... + 1100408.

Almost surely, 239138062808 is an apocalyptic number.

It is an amenable number.

39138062808 is an abundant number, since it is smaller than the sum of its proper divisors (66266934792).

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

39138062808 is a wasteful number, since it uses less digits than its factorization.

39138062808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39652 (or 39648 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 39138062808 in words is "thirty-nine billion, one hundred thirty-eight million, sixty-two thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 3469 6938 10407 13876 20814 27752 36161 41628 45097 72322 83256 90194 108483 135291 144644 180388 216966 270582 289288 360776 433932 470093 541164 867864 940186 1082328 1410279 1880372 2820558 3760744 5641116 11282232 125442509 250885018 376327527 501770036 752655054 1003540072 1505310108 1630752617 3010620216 3261505234 4892257851 6523010468 9784515702 13046020936 19569031404 39138062808