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868906898 = 21922865971
BaseRepresentation
bin110011110010100…
…111011110010010
32020120000001011222
4303302213132102
53234420010043
6222115405042
730350405156
oct6362473622
92216001158
10868906898
11406525682
12202bb3782
1310b02acc2
1483585066
1551438d68
hex33ca7792

868906898 has 8 divisors (see below), whose sum is σ = 1371958320. Its totient is φ = 411587460.

The previous prime is 868906897. The next prime is 868906901. The reversal of 868906898 is 898609868.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

868906898 is a strobogrammatic number because it is the same when read upside-down.

It is a self number, because there is not a number n which added to its sum of digits gives 868906898.

It is not an unprimeable number, because it can be changed into a prime (868906897) 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, 11432948 + ... + 11433023.

It is an arithmetic number, because the mean of its divisors is an integer number (171494790).

Almost surely, 2868906898 is an apocalyptic number.

868906898 is a deficient number, since it is larger than the sum of its proper divisors (503051422).

868906898 is a wasteful number, since it uses less digits than its factorization.

868906898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22865992.

The product of its (nonzero) digits is 11943936, while the sum is 62.

The square root of 868906898 is about 29477.2267691518. The cubic root of 868906898 is about 954.2402875896.

The spelling of 868906898 in words is "eight hundred sixty-eight million, nine hundred six thousand, eight hundred ninety-eight".

Divisors: 1 2 19 38 22865971 45731942 434453449 868906898