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868950340 = 22543447517
BaseRepresentation
bin110011110010110…
…010000101000100
32020120002020202221
4303302302011010
53234422402330
6222120342124
730350645626
oct6362620504
92216066687
10868950340
11406555285
12203014944
1310b0449cb
1483596c16
1551446b7a
hex33cb2144

868950340 has 12 divisors (see below), whose sum is σ = 1824795756. Its totient is φ = 347580128.

The previous prime is 868950337. The next prime is 868950349. The reversal of 868950340 is 43059868.

It can be written as a sum of positive squares in 2 ways, for example, as 443270916 + 425679424 = 21054^2 + 20632^2 .

It is a super-2 number, since 2×8689503402 = 1510149386772231200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (868950349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21723739 + ... + 21723778.

It is an arithmetic number, because the mean of its divisors is an integer number (152066313).

Almost surely, 2868950340 is an apocalyptic number.

It is an amenable number.

868950340 is an abundant number, since it is smaller than the sum of its proper divisors (955845416).

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

868950340 is a wasteful number, since it uses less digits than its factorization.

868950340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43447526 (or 43447524 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 868950340 is about 29477.9636338740. The cubic root of 868950340 is about 954.2561901049.

The spelling of 868950340 in words is "eight hundred sixty-eight million, nine hundred fifty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 43447517 86895034 173790068 217237585 434475170 868950340