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83877081 = 360746061
BaseRepresentation
bin1001111111111…
…01110011011001
312211211101201120
410333331303121
5132433031311
612153435453
72035641411
oct477756331
9184741646
1083877081
114338a102
122410bb89
13144ba012
14b1d5641
15756c706
hex4ffdcd9

83877081 has 8 divisors (see below), whose sum is σ = 112022784. Its totient is φ = 55824720.

The previous prime is 83877049. The next prime is 83877083. The reversal of 83877081 is 18077838.

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

It is not a de Polignac number, because 83877081 - 25 = 83877049 is a prime.

It is a super-2 number, since 2×838770812 = 14070729434161122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83877083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21210 + ... + 24851.

It is an arithmetic number, because the mean of its divisors is an integer number (14002848).

Almost surely, 283877081 is an apocalyptic number.

It is an amenable number.

83877081 is a deficient number, since it is larger than the sum of its proper divisors (28145703).

83877081 is a wasteful number, since it uses less digits than its factorization.

83877081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46671.

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 83877081 is about 9158.4431537243. The cubic root of 83877081 is about 437.7381882316.

The spelling of 83877081 in words is "eighty-three million, eight hundred seventy-seven thousand, eighty-one".

Divisors: 1 3 607 1821 46061 138183 27959027 83877081