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861585068 = 22631341357
BaseRepresentation
bin110011010110101…
…011111010101100
32020001020001112002
4303112223322230
53231031210233
6221254431432
730231231551
oct6326537254
92201201462
10861585068
11402384683
12200662578
13109666466
14825daa28
155098e6e8
hex335abeac

861585068 has 12 divisors (see below), whose sum is σ = 1510167792. Its totient is φ = 430108560.

The previous prime is 861585031. The next prime is 861585073. The reversal of 861585068 is 860585168.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168155 + ... + 173202.

It is an arithmetic number, because the mean of its divisors is an integer number (125847316).

Almost surely, 2861585068 is an apocalyptic number.

It is an amenable number.

861585068 is a deficient number, since it is larger than the sum of its proper divisors (648582724).

861585068 is a wasteful number, since it uses less digits than its factorization.

861585068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341992 (or 341990 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 47.

The square root of 861585068 is about 29352.7693412393. The cubic root of 861585068 is about 951.5524268424.

The spelling of 861585068 in words is "eight hundred sixty-one million, five hundred eighty-five thousand, sixty-eight".

Divisors: 1 2 4 631 1262 2524 341357 682714 1365428 215396267 430792534 861585068