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86770943 = 769117939
BaseRepresentation
bin1010010110000…
…00010011111111
320001021102100122
411023000103333
5134203132233
612335445155
72102353340
oct513002377
9201242318
1086770943
1144a86326
12250867bb
1314c9126c
14b74a0c7
15793ed98
hex52c04ff

86770943 has 8 divisors (see below), whose sum is σ = 99315840. Its totient is φ = 74263320.

The previous prime is 86770933. The next prime is 86770949. The reversal of 86770943 is 34907768.

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 86770943 - 210 = 86769919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86770894 and 86770903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86770949) 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, 4133 + ... + 13806.

It is an arithmetic number, because the mean of its divisors is an integer number (12414480).

Almost surely, 286770943 is an apocalyptic number.

86770943 is a deficient number, since it is larger than the sum of its proper divisors (12544897).

86770943 is a wasteful number, since it uses less digits than its factorization.

86770943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18637.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 86770943 is about 9315.0922163981. The cubic root of 86770943 is about 442.7155458764.

The spelling of 86770943 in words is "eighty-six million, seven hundred seventy thousand, nine hundred forty-three".

Divisors: 1 7 691 4837 17939 125573 12395849 86770943