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6865907952 = 243143039749
BaseRepresentation
bin1100110010011110…
…10111000011110000
3122201111102021002010
412121033113003300
5103030133023302
63053144122520
7332100153231
oct63117270360
918644367063
106865907952
112a036982a2
1213b7466440
138555b6a37
14491c13088
152a2b7d16c
hex1993d70f0

6865907952 has 20 divisors (see below), whose sum is σ = 17736929000. Its totient is φ = 2288635968.

The previous prime is 6865907927. The next prime is 6865907953. The reversal of 6865907952 is 2597095686.

It is a junction number, because it is equal to n+sod(n) for n = 6865907892 and 6865907901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6865907953) 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 3 ways as a sum of consecutive naturals, for example, 71519827 + ... + 71519922.

It is an arithmetic number, because the mean of its divisors is an integer number (886846450).

Almost surely, 26865907952 is an apocalyptic number.

It is an amenable number.

6865907952 is an abundant number, since it is smaller than the sum of its proper divisors (10871021048).

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

6865907952 is a wasteful number, since it uses less digits than its factorization.

6865907952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143039760 (or 143039754 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 57.

The square root of 6865907952 is about 82860.7745076040. The cubic root of 6865907952 is about 1900.6376393548.

The spelling of 6865907952 in words is "six billion, eight hundred sixty-five million, nine hundred seven thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 143039749 286079498 429119247 572158996 858238494 1144317992 1716476988 2288635984 3432953976 6865907952