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86123863 = 7119310313
BaseRepresentation
bin1010010001000…
…10010101010111
320000001112201201
411020202111113
5134021430423
612313533331
72064016660
oct510422527
9200045651
1086123863
1144684151
1224a14247
1314ac5887
14b61c367
1578632ad
hex5222557

86123863 has 8 divisors (see below), whose sum is σ = 98519328. Its totient is φ = 73751424.

The previous prime is 86123861. The next prime is 86123879. The reversal of 86123863 is 36832168.

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 86123863 - 21 = 86123861 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 (86123861) 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, 3195 + ... + 13507.

It is an arithmetic number, because the mean of its divisors is an integer number (12314916).

Almost surely, 286123863 is an apocalyptic number.

86123863 is a deficient number, since it is larger than the sum of its proper divisors (12395465).

86123863 is a wasteful number, since it uses less digits than its factorization.

86123863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11513.

The product of its digits is 41472, while the sum is 37.

The square root of 86123863 is about 9280.2943380046. The cubic root of 86123863 is about 441.6123061769.

The spelling of 86123863 in words is "eighty-six million, one hundred twenty-three thousand, eight hundred sixty-three".

Divisors: 1 7 1193 8351 10313 72191 12303409 86123863