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986438081 = 3797093671
BaseRepresentation
bin111010110010111…
…101100111000001
32112202011020122202
4322302331213001
54010012004311
6241514442545
733305404526
oct7262754701
92482136582
10986438081
11466900592
12236433455
1312949c295
149501b14d
155b902e3b
hex3acbd9c1

986438081 has 8 divisors (see below), whose sum is σ = 990705600. Its totient is φ = 982180080.

The previous prime is 986438071. The next prime is 986438113. The reversal of 986438081 is 180834689.

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 986438081 - 214 = 986421697 is a prime.

It is a super-2 number, since 2×9864380812 = 1946120175293925122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (986438071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266876 + ... + 270546.

It is an arithmetic number, because the mean of its divisors is an integer number (123838200).

Almost surely, 2986438081 is an apocalyptic number.

It is an amenable number.

986438081 is a deficient number, since it is larger than the sum of its proper divisors (4267519).

986438081 is a wasteful number, since it uses less digits than its factorization.

986438081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4759.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 986438081 is about 31407.6118321658. The cubic root of 986438081 is about 995.4587687699.

The spelling of 986438081 in words is "nine hundred eighty-six million, four hundred thirty-eight thousand, eighty-one".

Divisors: 1 379 709 3671 268711 1391309 2602739 986438081