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8025091 = 23348917
BaseRepresentation
bin11110100111010000000011
3120002201100121
4132213100003
54023300331
6444001111
7125132524
oct36472003
916081317
108025091
114591408
122830197
13187c999
1410cc84b
15a87c11
hex7a7403

8025091 has 4 divisors (see below), whose sum is σ = 8374032. Its totient is φ = 7676152.

The previous prime is 8025089. The next prime is 8025097. The reversal of 8025091 is 1905208.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8025091 - 21 = 8025089 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (8025097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174436 + ... + 174481.

It is an arithmetic number, because the mean of its divisors is an integer number (2093508).

Almost surely, 28025091 is an apocalyptic number.

8025091 is a deficient number, since it is larger than the sum of its proper divisors (348941).

8025091 is a wasteful number, since it uses less digits than its factorization.

8025091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348940.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 8025091 is about 2832.8591564001. The cubic root of 8025091 is about 200.2088734501.

The spelling of 8025091 in words is "eight million, twenty-five thousand, ninety-one".

Divisors: 1 23 348917 8025091