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1982433742 = 21971279131
BaseRepresentation
bin111011000101001…
…1000100111001110
312010011022001211221
41312022120213032
513030000334432
6524414233554
7100061260132
oct16612304716
95104261757
101982433742
119280398a3
12473ab58ba
13257936923
1414b4053c2
15b9092b97
hex762989ce

1982433742 has 48 divisors (see below), whose sum is σ = 3239596800. Its totient is φ = 907124400.

The previous prime is 1982433737. The next prime is 1982433749. The reversal of 1982433742 is 2473342891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982433749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15133017 + ... + 15133147.

It is an arithmetic number, because the mean of its divisors is an integer number (67491600).

Almost surely, 21982433742 is an apocalyptic number.

1982433742 is a deficient number, since it is larger than the sum of its proper divisors (1257163058).

1982433742 is a wasteful number, since it uses less digits than its factorization.

1982433742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 302 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 1982433742 is about 44524.5296662413. The cubic root of 1982433742 is about 1256.2215144585.

The spelling of 1982433742 in words is "one billion, nine hundred eighty-two million, four hundred thirty-three thousand, seven hundred forty-two".

Divisors: 1 2 19 38 71 79 131 142 158 262 1349 1501 2489 2698 3002 4978 5041 5609 9301 10082 10349 11218 18602 20698 95779 106571 176719 191558 196631 213142 353438 393262 398239 660371 734779 796478 1320742 1469558 7566541 12547049 13960801 15133082 25094098 27921602 52169309 104338618 991216871 1982433742