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82378841 = 433475521
BaseRepresentation
bin1001110100100…
…00000001011001
312202000021112012
410322100001121
5132042110331
612101355305
72020131356
oct472200131
9182007465
1082378841
1142556496
1223708b35
13140b409c
14ad2562d
15737382b
hex4e90059

82378841 has 8 divisors (see below), whose sum is σ = 84552864. Its totient is φ = 80216640.

The previous prime is 82378837. The next prime is 82378859. The reversal of 82378841 is 14887328.

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 82378841 - 22 = 82378837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82378441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12161 + ... + 17681.

It is an arithmetic number, because the mean of its divisors is an integer number (10569108).

Almost surely, 282378841 is an apocalyptic number.

It is an amenable number.

82378841 is a deficient number, since it is larger than the sum of its proper divisors (2174023).

82378841 is a wasteful number, since it uses less digits than its factorization.

82378841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911.

The product of its digits is 86016, while the sum is 41.

The square root of 82378841 is about 9076.2790283243. The cubic root of 82378841 is about 435.1161727855.

The spelling of 82378841 in words is "eighty-two million, three hundred seventy-eight thousand, eight hundred forty-one".

Divisors: 1 43 347 5521 14921 237403 1915787 82378841