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8002945 = 54337223
BaseRepresentation
bin11110100001110110000001
3120001120222101
4132201312001
54022043240
6443310401
7125011126
oct36416601
916046871
108002945
114576805
12281b401
131872892
1410c474d
15a8139a
hex7a1d81

8002945 has 8 divisors (see below), whose sum is σ = 9827136. Its totient is φ = 6253296.

The previous prime is 8002931. The next prime is 8002961. The reversal of 8002945 is 5492008.

It is a happy number.

8002945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8002945 - 217 = 7871873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18397 + ... + 18826.

It is an arithmetic number, because the mean of its divisors is an integer number (1228392).

Almost surely, 28002945 is an apocalyptic number.

It is an amenable number.

8002945 is a deficient number, since it is larger than the sum of its proper divisors (1824191).

8002945 is a wasteful number, since it uses less digits than its factorization.

8002945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37271.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 8002945 is about 2828.9476842105. The cubic root of 8002945 is about 200.0245386558.

The spelling of 8002945 in words is "eight million, two thousand, nine hundred forty-five".

Divisors: 1 5 43 215 37223 186115 1600589 8002945