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86956031 = 2337102181
BaseRepresentation
bin1010010111011…
…01011111111111
320001121211020202
411023231133333
5134230043111
612343434115
72104054061
oct513553777
9201554222
1086956031
11450a2398
122515593b
1315027596
14b797731
157979b3b
hex52ed7ff

86956031 has 8 divisors (see below), whose sum is σ = 93189984. Its totient is φ = 80926560.

The previous prime is 86956013. The next prime is 86956057. The reversal of 86956031 is 13065968.

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 86956031 - 210 = 86955007 is a prime.

It is a super-3 number, since 3×869560313 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86956061) 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, 50240 + ... + 51941.

It is an arithmetic number, because the mean of its divisors is an integer number (11648748).

Almost surely, 286956031 is an apocalyptic number.

86956031 is a deficient number, since it is larger than the sum of its proper divisors (6233953).

86956031 is a wasteful number, since it uses less digits than its factorization.

86956031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102241.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 86956031 is about 9325.0217694116. The cubic root of 86956031 is about 443.0301025664.

The spelling of 86956031 in words is "eighty-six million, nine hundred fifty-six thousand, thirty-one".

Divisors: 1 23 37 851 102181 2350163 3780697 86956031