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143074 = 271537
BaseRepresentation
bin100010111011100010
321021021001
4202323202
514034244
63022214
71134061
oct427342
9237231
10143074
1198548
126a96a
1350179
143a1d8
152c5d4
hex22ee2

143074 has 4 divisors (see below), whose sum is σ = 214614. Its totient is φ = 71536.

The previous prime is 143063. The next prime is 143093. The reversal of 143074 is 470341.

It is a happy number.

143074 is nontrivially palindromic in base 4.

143074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 470341 = 1932437.

It can be written as a sum of positive squares in only one way, i.e., 127449 + 15625 = 357^2 + 125^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35767 + ... + 35770.

2143074 is an apocalyptic number.

143074 is a deficient number, since it is larger than the sum of its proper divisors (71540).

143074 is an equidigital number, since it uses as much as digits as its factorization.

143074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71539.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 143074 is about 378.2512392577. The cubic root of 143074 is about 52.3022340370.

The spelling of 143074 in words is "one hundred forty-three thousand, seventy-four", and thus it is an iban number.

Divisors: 1 2 71537 143074