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42383143 = 1147731123
BaseRepresentation
bin1010000110101…
…1011100100111
32221202021202001
42201223130213
541322230033
64112230131
71023152005
oct241533447
987667661
1042383143
1121a190a0
121223b347
138a1c4aa
1458b3a75
153ac2e7d
hex286b727

42383143 has 16 divisors (see below), whose sum is σ = 47909376. Its totient is φ = 37160640.

The previous prime is 42383119. The next prime is 42383147. The reversal of 42383143 is 34138324.

It is not a de Polignac number, because 42383143 - 25 = 42383111 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 (42383147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37180 + ... + 38302.

It is an arithmetic number, because the mean of its divisors is an integer number (2994336).

Almost surely, 242383143 is an apocalyptic number.

42383143 is a deficient number, since it is larger than the sum of its proper divisors (5526233).

42383143 is a wasteful number, since it uses less digits than its factorization.

42383143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254.

The product of its digits is 6912, while the sum is 28.

The square root of 42383143 is about 6510.2337131627. The cubic root of 42383143 is about 348.6564627983.

It can be divided in two parts, 4238 and 3143, that added together give a triangular number (7381 = T121).

The spelling of 42383143 in words is "forty-two million, three hundred eighty-three thousand, one hundred forty-three".

Divisors: 1 11 47 73 517 803 1123 3431 12353 37741 52781 81979 580591 901769 3853013 42383143