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801142 = 21723563
BaseRepresentation
bin11000011100101110110
31111200221221
43003211312
5201114032
625100554
76544456
oct3034566
91450857
10801142
114a7a01
1232775a
13220864
1416bd66
1510c597
hexc3976

801142 has 8 divisors (see below), whose sum is σ = 1272456. Its totient is φ = 376992.

The previous prime is 801137. The next prime is 801179. The reversal of 801142 is 241108.

It is a happy number.

801142 is nontrivially palindromic in base 7.

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

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 11748 + ... + 11815.

It is an arithmetic number, because the mean of its divisors is an integer number (159057).

2801142 is an apocalyptic number.

801142 is a deficient number, since it is larger than the sum of its proper divisors (471314).

801142 is a wasteful number, since it uses less digits than its factorization.

801142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23582.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 801142 is about 895.0653607419. The cubic root of 801142 is about 92.8759281239.

The spelling of 801142 in words is "eight hundred one thousand, one hundred forty-two".

Divisors: 1 2 17 34 23563 47126 400571 801142