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1982088836 = 2271331117509
BaseRepresentation
bin111011000100100…
…0100011010000100
312010010122112201122
41312021010122010
513024403320321
6524403013112
7100055322440
oct16611043204
95103575648
101982088836
11927923752
1247396a198
13257845940
1414b355820
15b90258ab
hex76244684

1982088836 has 48 divisors (see below), whose sum is σ = 4283086080. Its totient is φ = 781557120.

The previous prime is 1982088833. The next prime is 1982088869. The reversal of 1982088836 is 6388802891.

It is not an unprimeable number, because it can be changed into a prime (1982088833) 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, 104450 + ... + 121958.

It is an arithmetic number, because the mean of its divisors is an integer number (89230960).

Almost surely, 21982088836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1982088836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2141543040).

1982088836 is an abundant number, since it is smaller than the sum of its proper divisors (2300997244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1982088836 is a wasteful number, since it uses less digits than its factorization.

1982088836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17844 (or 17842 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 53.

The square root of 1982088836 is about 44520.6562844709. The cubic root of 1982088836 is about 1256.1486573001.

The spelling of 1982088836 in words is "one billion, nine hundred eighty-two million, eighty-eight thousand, eight hundred thirty-six".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 311 364 622 1244 2177 4043 4354 8086 8708 16172 17509 28301 35018 56602 70036 113204 122563 227617 245126 455234 490252 910468 1593319 3186638 5445299 6373276 10890598 21781196 38117093 70788887 76234186 141577774 152468372 283155548 495522209 991044418 1982088836