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180868 = 22103439
BaseRepresentation
bin101100001010000100
3100012002211
4230022010
521241433
63513204
71352212
oct541204
9305084
10180868
11113986
1288804
136442c
1449cb2
15388cd
hex2c284

180868 has 12 divisors (see below), whose sum is σ = 320320. Its totient is φ = 89352.

The previous prime is 180847. The next prime is 180871. The reversal of 180868 is 868081.

It is a plaindrome in base 15.

It is an unprimeable number.

180868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193 + ... + 631.

2180868 is an apocalyptic number.

It is an amenable number.

180868 is a deficient number, since it is larger than the sum of its proper divisors (139452).

180868 is a wasteful number, since it uses less digits than its factorization.

180868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 180868 is about 425.2857862661. The cubic root of 180868 is about 56.5527739348.

The spelling of 180868 in words is "one hundred eighty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 103 206 412 439 878 1756 45217 90434 180868