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143031443186 = 2193763985347
BaseRepresentation
bin1000010100110101010…
…1101001111011110010
3111200012002220011000202
42011031111221323302
54320412022140221
6145412512115202
713222311131042
oct2051525517362
9450162804022
10143031443186
1155728580295
1223878b35b02
1310645935368
146ccc09b722
153ac1e26d0b
hex214d569ef2

143031443186 has 8 divisors (see below), whose sum is σ = 225839120880. Its totient is φ = 67751736228.

The previous prime is 143031443179. The next prime is 143031443189. The reversal of 143031443186 is 681344130341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 3763985347 = 143031443186 / (1 + 4 + 3 + 0 + 3 + 1 + 4 + 4 + 3 + 1 + 8 + 6).

It is not an unprimeable number, because it can be changed into a prime (143031443189) 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, 1881992636 + ... + 1881992711.

It is an arithmetic number, because the mean of its divisors is an integer number (28229890110).

Almost surely, 2143031443186 is an apocalyptic number.

143031443186 is a deficient number, since it is larger than the sum of its proper divisors (82807677694).

143031443186 is a wasteful number, since it uses less digits than its factorization.

143031443186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763985368.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 143031443186 in words is "one hundred forty-three billion, thirty-one million, four hundred forty-three thousand, one hundred eighty-six".

Divisors: 1 2 19 38 3763985347 7527970694 71515721593 143031443186