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143046242 = 271523121
BaseRepresentation
bin10001000011010…
…11011001100010
3100222011111112222
420201223121202
5243104434432
622105551042
73354605303
oct1041533142
9328144488
10143046242
1173822839
123baa5482
1323835a61
1414dd87aa
15c859112
hex886b662

143046242 has 4 divisors (see below), whose sum is σ = 214569366. Its totient is φ = 71523120.

The previous prime is 143046217. The next prime is 143046283. The reversal of 143046242 is 242640341.

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., 143017681 + 28561 = 11959^2 + 169^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35761559 + ... + 35761562.

Almost surely, 2143046242 is an apocalyptic number.

143046242 is a deficient number, since it is larger than the sum of its proper divisors (71523124).

143046242 is an equidigital number, since it uses as much as digits as its factorization.

143046242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71523123.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 143046242 is about 11960.1940619707. The cubic root of 143046242 is about 522.9885140674.

Adding to 143046242 its reverse (242640341), we get a palindrome (385686583).

The spelling of 143046242 in words is "one hundred forty-three million, forty-six thousand, two hundred forty-two".

Divisors: 1 2 71523121 143046242