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143386 = 271693
BaseRepresentation
bin100011000000011010
321021200121
4203000122
514042021
63023454
71135015
oct430032
9237617
10143386
1198801
126ab8a
1350359
143a37c
152c741
hex2301a

143386 has 4 divisors (see below), whose sum is σ = 215082. Its totient is φ = 71692.

The previous prime is 143357. The next prime is 143387. The reversal of 143386 is 683341.

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

It can be written as a sum of positive squares in only one way, i.e., 136161 + 7225 = 369^2 + 85^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 143386.

It is not an unprimeable number, because it can be changed into a prime (143387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35845 + ... + 35848.

2143386 is an apocalyptic number.

143386 is a deficient number, since it is larger than the sum of its proper divisors (71696).

143386 is an equidigital number, since it uses as much as digits as its factorization.

143386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71695.

The product of its digits is 1728, while the sum is 25.

The square root of 143386 is about 378.6634389534. The cubic root of 143386 is about 52.3402247496.

It can be divided in two parts, 143 and 386, that added together give a square (529 = 232).

The spelling of 143386 in words is "one hundred forty-three thousand, three hundred eighty-six".

Divisors: 1 2 71693 143386