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85685847293 = 211931943577
BaseRepresentation
bin100111111001101000…
…1100100010011111101
322012011121001001011202
41033303101210103331
52400441034103133
6103210305025245
76122242453604
oct1176321442375
9265147031152
1085685847293
1133380477332
1214734025225
1381070b8cb7
14420bd6ca3b
15236774e2e8
hex13f34644fd

85685847293 has 8 divisors (see below), whose sum is σ = 86103155520. Its totient is φ = 85268645280.

The previous prime is 85685847271. The next prime is 85685847361. The reversal of 85685847293 is 39274858658.

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

It is a cyclic number.

It is not a de Polignac number, because 85685847293 - 210 = 85685846269 is a prime.

It is a super-3 number, since 3×856858472933 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85685847593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1944521 + ... + 1988097.

It is an arithmetic number, because the mean of its divisors is an integer number (10762894440).

Almost surely, 285685847293 is an apocalyptic number.

It is an amenable number.

85685847293 is a deficient number, since it is larger than the sum of its proper divisors (417308227).

85685847293 is a wasteful number, since it uses less digits than its factorization.

85685847293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53107.

The product of its digits is 116121600, while the sum is 65.

The spelling of 85685847293 in words is "eighty-five billion, six hundred eighty-five million, eight hundred forty-seven thousand, two hundred ninety-three".

Divisors: 1 211 9319 43577 1966309 9194747 406094063 85685847293