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8285314831221 = 323761116231287
BaseRepresentation
bin111100010010001001100…
…1111110101001101110101
31002100001211211120120011110
41320210103033311031311
52041221311044044341
625342115431025233
71513410553032501
oct170442317651565
932301754516143
108285314831221
11270486725190a
12b198bb20b219
134813c019838c
14209023311301
15e57c029d216
hex789133f5375

8285314831221 has 8 divisors (see below), whose sum is σ = 11047551461824. Its totient is φ = 5523310710720.

The previous prime is 8285314831109. The next prime is 8285314831259. The reversal of 8285314831221 is 1221384135828.

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

It is not a de Polignac number, because 8285314831221 - 231 = 8283167347573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8285314831621) 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, 58044361 + ... + 58186926.

It is an arithmetic number, because the mean of its divisors is an integer number (1380943932728).

Almost surely, 28285314831221 is an apocalyptic number.

It is an amenable number.

8285314831221 is a deficient number, since it is larger than the sum of its proper divisors (2762236630603).

8285314831221 is a wasteful number, since it uses less digits than its factorization.

8285314831221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116255051.

The product of its digits is 737280, while the sum is 48.

The spelling of 8285314831221 in words is "eight trillion, two hundred eighty-five billion, three hundred fourteen million, eight hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 3 23761 71283 116231287 348693861 2761771610407 8285314831221