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86123 = 711213
BaseRepresentation
bin10101000001101011
311101010202
4111001223
510223443
61502415
7506042
oct250153
9141122
1086123
1159784
1241a0b
133027b
1423559
151a7b8
hex1506b

86123 has 4 divisors (see below), whose sum is σ = 87408. Its totient is φ = 84840.

The previous prime is 86117. The next prime is 86131. The reversal of 86123 is 32168.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86123 - 214 = 69739 is a prime.

It is a super-2 number, since 2×861232 = 14834342258, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 86095 and 86104.

It is not an unprimeable number, because it can be changed into a prime (86113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536 + ... + 677.

It is an arithmetic number, because the mean of its divisors is an integer number (21852).

286123 is an apocalyptic number.

86123 is a deficient number, since it is larger than the sum of its proper divisors (1285).

86123 is a wasteful number, since it uses less digits than its factorization.

86123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284.

The product of its digits is 288, while the sum is 20.

The square root of 86123 is about 293.4672043006. The cubic root of 86123 is about 44.1610831120.

It can be divided in two parts, 8 and 6123, that multiplied together give a palindrome (48984).

The spelling of 86123 in words is "eighty-six thousand, one hundred twenty-three".

Divisors: 1 71 1213 86123