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31085327 = 713341597
BaseRepresentation
bin111011010010…
…1001100001111
32011111022001102
41312211030033
530424212302
63030133315
7525135530
oct166451417
964438042
1031085327
1116601959
12a4b123b
136594cb0
1441b2687
152ae0702
hex1da530f

31085327 has 8 divisors (see below), whose sum is σ = 38258976. Its totient is φ = 24594912.

The previous prime is 31085323. The next prime is 31085359. The reversal of 31085327 is 72358013.

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 31085327 - 22 = 31085323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31085327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31085321) 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, 170708 + ... + 170889.

It is an arithmetic number, because the mean of its divisors is an integer number (4782372).

Almost surely, 231085327 is an apocalyptic number.

31085327 is a deficient number, since it is larger than the sum of its proper divisors (7173649).

31085327 is a wasteful number, since it uses less digits than its factorization.

31085327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341617.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 31085327 is about 5575.4216880878. The cubic root of 31085327 is about 314.4260211884.

The spelling of 31085327 in words is "thirty-one million, eighty-five thousand, three hundred twenty-seven".

Divisors: 1 7 13 91 341597 2391179 4440761 31085327