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302001143 = 1919518147
BaseRepresentation
bin10010000000000…
…010101111110111
3210001021020200112
4102000002233313
51104303014033
645544533235
710324652543
oct2200025767
9701236615
10302001143
11145520a24
128518121b
134a74b902
142c174a23
151b7a6c48
hex12002bf7

302001143 has 8 divisors (see below), whose sum is σ = 318097920. Its totient is φ = 285924600.

The previous prime is 302001137. The next prime is 302001149. The reversal of 302001143 is 341100203.

It is an interprime number because it is at equal distance from previous prime (302001137) and next prime (302001149).

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

It is a cyclic number.

It is not a de Polignac number, because 302001143 - 26 = 302001079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302001149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32996 + ... + 41142.

It is an arithmetic number, because the mean of its divisors is an integer number (39762240).

Almost surely, 2302001143 is an apocalyptic number.

302001143 is a deficient number, since it is larger than the sum of its proper divisors (16096777).

302001143 is a wasteful number, since it uses less digits than its factorization.

302001143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10117.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 302001143 is about 17378.1800830812. The cubic root of 302001143 is about 670.9181316292.

Adding to 302001143 its reverse (341100203), we get a palindrome (643101346).

The spelling of 302001143 in words is "three hundred two million, one thousand, one hundred forty-three".

Divisors: 1 19 1951 8147 37069 154793 15894797 302001143